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K-400H-038 PerforMAX® Universal Toilet Fill Valve and 3-in Flapper Kit

The Fluidmaster K-400H-038 Universal 3 in. High Performance Everything Toilet Tank Repair Kit offers an all-in-one solution to repair your toilet fast but made specifically for 3 in. flush valve toilets. This complete toilet repair kit includes the PerforMAX® toilet fill valve, a high-performance fill valve featuring 2X greater refill rates than standard models, with ultra-quiet operation and adjustable bowl and tank water settings to customize your water use per flush. The adjustable 3 in. toilet flush valve changes height with a quick turn, no cutting required. Also featuring the adjustable 3 in. toilet flapper. Built to last featuring a durable silicone seal, and water-saving adjustable dial design. The universal tank-to-bowl toilet gasket is made to fit most 3 in. flush valve toilets, with a simple two-piece design. Quickly solve running, noisy or leaky toilet problems with one kit made to fit most toilet brands and provide the simplest install possible. Follow the step-by-step instructions with our color-coded, helpful installation tools included for the fastest installation possible.
  • The 3 in Everything Kit offers all you need to fix your 3 in flush valve toilet in one repair kit
  • PerforMAX® fill valve offers the fast and quiet refill, adjustable tank and bowl dials for customized water-use
  • Easy to install, universal design fits 3 in flush valve toilets
  • Adjustable fill valve height to fit more tanks
  • Helpful install tools included for the fastest installation possible
  • Toilet flapper dial turns to set water-use per flush and eliminate water waste
  • Durable, stainless steel hardware for a long lifespan
  • 7 Year warranty

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K-400H-039-T14 PerforMAX® Fill Valve & 2 inch Flapper Repair Kit

You can purchase this repair kit from the Fluidmaster Online Store

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In October, 2024, Buyers Guide in an independent study, named the 400H PerforMAX fill valve as the #1 toilet fill valve with a score of 10 out of 10: Best Toilet Fill Valves

In an independent study, Storables.com rates this kit as one of the highest rated toilet repair product for 2023. Click here to read the article: Best Toilet Fill Valve

The Jerusalem Post independently rates the K-400H-039 as one the best toilet fill valves. Click here to read the article: 10 Best Fill Valves Review

Solve common toilet problems like noisy, leaky or running toilets with the Fluidmaster K-400H-039 PerforMAX High Performance Toilet Fill Valve and Adjustable 2 in. Flapper Kit. This repair kit includes the 400H Fill Valve and the 502 Flapper.

This kit has a universal design, made to fit 2 in. flush valve toilets including Kohler, Toto, American Standard and more. Now featuring both tank and bowl water level adjustment dials, to quickly customize your water use per flush and save.  The EZ-Twist height adjusts from 10” to 15” to fit most toilet tanks.

  • The PerforMAX fill valve and 2 in. flapper repair kit is the top choice to make your 2 in. flush valve toilet run like new
  • PerforMAX high performance toilet fill valve offers adjustable tank and bowl water levels for full water control
  • Fast and easy to install, designed to fit 2 in. flush valve toilets
  • PerforMAX water-saving toilet flapper included to save water use per flush
  • EZ-twist adjustable fill valve height to fit more tanks
  • Maximize your flush performance and water savings with this high performance toilet repair kit
  • Corrosion resistant flapper
  • Solid frame flapper to eliminates twisting and leaks
  • 7 year warranty

How to install the 400H fill valve video:

How to install the 502 toilet flapper video:

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K-400H-040-T5 - PerforMAX® Fill Valve & 3 inch Flapper Repair Kit

You can purchase this repair kit from the Fluidmaster Online Store

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The PerforMAX Fill Valve and 3 in. Flapper kit offers solutions for common toilet problems like noisy, leaky or slow filling toilets. This repair kit includes the 400H fill valve and the 5403 flapper.

The Fluidmaster K-400H-040 PerforMAX High Performance Toilet Fill Valve and Adjustable 3 in. Flapper Kit is designed to offer the same high performance, and water-saving performance as our other repair kits, but specifically made for newer HET 3 in. flush valve toilets.

In October, 2024, Buyers Guide in an independent study, named the 400H PerforMAX fill valve as the #1 toilet fill valve with a score of 10 out of 10: Best Toilet Fill Valves

  • The PerforMAX fill valve and 3 in. flapper kit is the top solution to upgrade your toilets fill and flush in one repair kit
  • Easy to install, made for 3 in flush valve toilets
  • High performance toilet fill valve offers both tank and bowl water level adjustment dials
  • EZ-twist adjustable fill valve height to fit more tanks
  • PerforMAX water-saving toilet flapper adjusts to save water per flush
  • Solid fame design to resist twisting and eliminate leaks
  • Fill valve and 3 in. flapper replacements built to save water
  • Corrosion resistant flapper with silicone seal lasts up to 10X longer than standard designs
  • 7 year warranty

How to install the 400H toilet fill valve video:

How to install the 5403 flapper video:

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400H - PerforMAX® FILL VALVE - 2 Pack

You can purchase this toilet fill valve from the Fluidmaster Online Store

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In October, 2024, Buyers Guide in an independent study, named the 400H PerforMAX fill valve as the #1 toilet fill valve with a score of 10 out of 10: Best Toilet Fill Valves

In an independent study, Storables.com rates this fill valve as the highest rated valve for 2023. Click here to read the article: Best Toilet Fill Valve

Fix running toilet, noisy toilet or a slow filling toilet with the Fluidmaster 400H PerforMAX Universal High Performance Fill Valve 2-Pack.

This universal design is built to work with most toilets and brands. Best for use in 1.28 HET and 1.6 GPF toilets, but can also be used with pre-1994 3.5 GPF toilets.

  • A quiet, powerful toilet fill valve replacement now available in a 2-pack
  • Quick and easy to install, with step-by-step instructions
  • Universal fit for most toilet models and brands
  • Easy turn tank water level adjustment
  • Bowl water level adjustment dial to save water use per flush
  • 2X greater bowl refill for a more powerful flush for 1.28 and 1.6 GPF toilets
  • Cut down repair time with a pre-installed shank washer
  • EZ-Twist height adjusts from 9 in. to 14 in. to fit more tanks
  • 7 year warranty

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K-400H-5002 PerforMAX® Kohler and American Standard Repair Kit With Tool

You can purchase this product exclusively at: Shop Fluidmaster

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This repair kit for Kohler and American Standard toilets comes with tools!

  • Restore your toilet’s fill and eliminate leaks on your specialty flush valve toilet fast
  • Fits: Kohler AquaPiston (Yellow Seal), American Standard Champion 3 (Yellow Seal), American Standard Champion 4 (Blue Seal)
  • Easy to install
  • Includes the quietest, most powerful fill valve solution for 2x greater refill rates
  • PerforMAX high performance toilet fill valve now with tank and bowl water level control
  • Direct OEM replacement flush valve seals designed to fit
  • Featuring the innovative green toilet tool for simple install and uninstall
  • Durable silicone seals – last 10x longer than standard material/li>
  • 7 year warranty

To download our free guide to fix common toilet problems please click here: Fluidmaster Toilet Repair Guide

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The Fluidmaster K-400H-5002 PerforMAX High Performance Toilet Fill Valve and Specialty Flush Valve Seals Repair Kit for Kohler and American Standard eliminates the guesswork when repairing your specialty flush valve toilet. This toilet repair kit includes the ultra-quiet and powerful PerforMAX toilet fill valve, for 2x greater refill rates than standard models. Featuring EZ-twist adjustable height from 10 in. to 15 in. to fit more tanks, and both tank and bowl water-saving adjustment dials to control water use per flush. Also including direct OEM replacement specialty flush valve seals made for the perfect fit. The color makes choosing simple, the Yellow Seal fits Kohler AquaPiston and American Standard Champion 3 models, while the Blue Seal fits American Standard Champion 4 models. Built to last up to 10x longer than standard designs, with durable silicone construction. Trust Fluidmaster’s PeforMAX Fill Valve and Seal Kit to eliminate leaks and restore toilet performance, with the fastest install possible.
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K-400H-001 PerforMAX® Fill Valve and Specialty Flush Valve Seals Kit

  • Quickly restore your toilet fill and eliminate leaks for your specialty flush valve toilet
  • Fits: Kohler® AquaPiston (Yellow Seal), American Standard® Champion 3 (Yellow Seal), American Standard® Champion 4 (Blue Seal)
  • Easy to install
  • Includes the quietest, most powerful fill valve solution for 2x greater refill rates
  • Direct OEM replacement flush valve seals designed to fit
  • Water saving roller clamp lets you regulate the fill level in the bowl
  • Durable silicone seals – last 10x longer than standard material
  • 7 year warranty

To download our free guide to fix common toilet problems please click here: Fluidmaster Toilet Repair Guide

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The Fluidmaster® K-400H-001-P5 PerforMAX® High Performance Toilet Fill Valve and Specialty Flush Valve Seals Repair Kit for Kohler and American Standard eliminates the guesswork when repairing your specialty flush valve toilet. This toilet repair kit includes the ultra-quiet and powerful PerforMAX® Toilet Fill Valve, for 2x greater refill rates than standard models. Featuring EZ-twist adjustable height from 10″ to 15″ to fit more tanks, and a water saving roller clamp to customize water levels in the bowl and save. Also including direct OEM replacement specialty flush valve seals designed to fit. The color makes choosing simple, the Yellow Seal fits Kohler® AquaPiston and American Standard® Champion 3 models, while the Blue Seal fits American Standard Champion 4 models. Built to last up to 10x longer than standard designs, with durable silicone construction. Trust Fluidmaster®’s PeforMAX® Fill Valve and Seal Kit to eliminate leaks and restore toilet performance.
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K-400H-021 Everything Kit for 2" Toilets - PerforMAX® High Performance Toilet Repair Kit With Tools

You can purchase this product directly from Fluidmaster at: Shop Fluidmaster (referred to as K-400H-5000)

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Welcome to the Fluidmaster Complete 2-inch Toilet Repair Kit, the ultimate solution for all your toilet repair needs. Our kit is designed to make your life easier by providing everything you need to fix your toilet quickly and efficiently. With our high-quality components, you can fix your toilet with confidence and enjoy long-lasting results.

Our kit includes a 2-inch flush valve with a powerful flapper that ensures a complete and powerful flush every time. The adjustable fill valve ensures proper water levels and prevents water wastage. The kit also includes a tank-to-bowl gasket, bolts, and a universal flapper which makes it easy to fit all toilet brands.

One of the best things about the Fluidmaster Complete 2-inch Toilet Repair Kit is that it is very easy to install. You don’t need any special tools or expertise to use it. Just follow the step-by-step instructions, and you’ll have your toilet up and running in no time.

If you want a reliable and affordable solution to your toilet repair needs, look no further than the Fluidmaster Complete 2-inch Toilet Repair Kit. It’s a game-changer that will make your life easier and your toilet more efficient.

This kit fixes all common toilet problems like running, noisy and leaking toilets.

This kit is best used for toilets manufactured from 1985 to current date that uses a 2″ flapper.

Rated 4.5 stars out of 5 by customers on Home Depot and 4.4 stars out of 5 on Lowe’s

This Toilet Repair Kit includes:

In October, 2024, Buyers Guide in an independent study, named the 400H PerforMAX fill valve as the #1 toilet fill valve with a score of 10 out of 10: Best Toilet Fill Valves

Rather than buying all the above parts individually, this repair kit gives you the peace of mind that these products will work together to eliminate all common toilet problems while saving you money.

Overview of the K-400H-021 Repair Kit:

  • Has everything you need to repair your toilet tank including tools
  • A faster, easier installation
  • Comes with a high performance fill valve
  • Adjustable flush valve eliminates cutting, simply twist to adjust height and fit any 2-in. flush valve
  • Universal tank-to-bowl gasket for use with all 2-in. flush valve toilets, including Kohler, Gerber and more
  • Multipurpose package is designed to hold water during install to eliminate mess and hassle
  • Durable, stainless steel hardware for a long lifespan that won’t corrode
  • Best for use in 1.28 and 1.6 GPF toilets (can also use with older 3.5 GPF toilets).
  • 7-year warranty – most other brands have only a 5 year warranty

Buy Now

See the FAQ section below to determine if you have a toilet with a 2 inch flush valve and flapper.

If you have a toilet with a 3″ flush valve and flapper, please consider our 3″ Everything Repair Kit

Installation video on the 2″ Everything Toilet Repair Kit:

 

Video produced by Fix It Home Improvement Channel on the 2″ Everything Toilet Repair Kit:

 

To download our free guide to fix common toilet problems please click here: Fluidmaster Toilet Repair Guide

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K-507A-008 Universal 2-in. Adjustable Toilet Flush Valve Repair Kit

  • Fix your leaky tank and restore flush performance with this adjustable flush valve repair kit
  • Easy to install, universal design fits 2 in. flush valve toilets
  • Adjustable- flush valve height adjusts with a twist to fit more tanks
  • PerforMAX Water-Saving Toilet Flapper included to save water use per flush
  • Universal tank-to-bowl gasket system included, for use with Kohler, Gerber and most any 2 in. flush valve toilet
  • Helpful install/uninstall tool provided for the easiest installation experience
  • Chlorine and hard water resistant flapper for a long lifespan
  • Durable, stainless steel hardware built to last
  • 5-year warranty

Best for use in 1.28 and 1.6 GPF toilets (can use with older 3.5 GPF models)

To download our free guide to fix common toilet problems please click here: Fluidmaster Toilet Repair Guide

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The Fluidmaster K-507A-008 Universal 2 in. Adjustable Flush Valve Repair Kit includes everything needed to restore your toilet’s flush. Quickly eliminate leaks at a common leak point, between the tank and bowl. From purchase to installation, this helpful toilet repair kit offers the simplest repair experience possible, showcasing step-by-step instructions and durable install/uninstall tools to eliminate searching for toilet repair tools. This universal design is built to work with most 2 in. flush valve toilets. The flush valve features an adjustable overflow tube, simply twist to adjust height for any toilet tank. Stop water waste and control your water use per flush with the solid frame PerforMAX Adjustable Flapper. This kit also includes the innovative universal tank-to-bowl gasket system that fits any 2 in. flush valve. Use the red gasket for standard designs, the black triangle gasket for Kohler models and combine to fit Gerber models. Eliminate leaks and save water with this durable and easy to use 2 in. toilet flush valve Kit.
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Here is the installation video:

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PRO45H Toilet Fill Valve

Fluidmaster® PRO45H Toilet Fill Valve is best for both dual flush and “low flow” toilets built after 2005 that are High Efficiency Toilets (1.28gpf or less) as the toilet fills much faster with this fill valve. This ultra-quiet fill valve installs with the same ease and speed of the  PRO45 and PRO45B. It gives you the ability to control the bowl water level separately from the tank and works with more two piece toilets.

The valve comes already equipped with a flow restrictor to eliminate potential water hammer issue with little loss of speed. The PRO45H is set to standard refill toilets or can be simply adjusted for more or less water into the bowl. The PRO45H saves you time and your customer’s money with no extra steps!

The valve is rated up to 125 psi and the adjustable refill will increase the bowl refill from 3% to 45%. The “H” stands for high efficiency which is what the refill knob allows for by increasing water volume to the bowl. 

  • Best for Dual Flush and low flow toilets built after 2005
  • Has both tank and bowl water level control for a more powerful flush
  • Reduces potential for water hammer
  • Simple adjustment to the bowl if needed
  • The adjustability of the bowl water helps newer, 1.28 gpf and lower flow toilets flush efficiently
  • Fast and easy to install
  • EZ-twist height adjustment from 9″ to 14″ to fit more tanks
  • Will work on dual flush toilets
  • Restores original toilet performance
  • Code approved anti-siphon design
  • 7 year warranty

 

 

 

 

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400H - PerforMAX® Fill Valve

You can purchase this toilet fill valve from the Fluidmaster Online Store

Buy Now

In October, 2024, Buyers Guide in an independent study, named the 400H PerforMAX fill valve as the #1 toilet fill valve with a score of 10 out of 10: Best Toilet Fill Valves

“My Top Pick” Youtube channel names the 400H PerforMAX fill valve as the best fill valve of 2025. Click here to watch the video: 5 Best Toilet Fill Valves 2025

In an independent study, Storables.com rates this fill valve as the highest rated valve for 2023. Click here to read the article: Best Toilet Fill Valve

Are you tired of experiencing weak toilet flush? Fluidmaster has the perfect solution for you with the 400H Toilet Fill Valve.

Our innovative design ensures a powerful flush every time. The 400H Toilet Fill Valve has been specifically designed to boost your toilet’s performance, providing a consistent and reliable flush. Say goodbye to the frustration of weak flushes and hello to a cleaner and more efficient toilet.

Easy to install, the 400H Toilet Fill Valve fits most toilets and is one of the quietest fill valves available. The 400H comes with both tank and bowl water control for a more powerful flush. The adjustability of the bowl water helps this valve work in all older as well as newer toilets.

What’s more, the 400H Toilet Fill Valve is incredibly durable and long-lasting, so you won’t have to worry about replacing it anytime soon. Its high-quality materials ensure it can withstand even the toughest of toilet environments.

Don’t settle for a subpar toilet experience any longer. Upgrade to the 400H Toilet Fill Valve and enjoy a powerful, efficient, and hassle-free flush every time. Order now and see the difference it can make in your daily routine.

  • Fix a weak toilet flush, constantly running, noisy, or slow filling toilet with the quietest, most powerful toilet fill valve
  • Get a more powerful flush and less clogs with our patented Tank AND Bowl water control system
  • The adjustability of the bowl water helps newer, 1.28 gpf and lower flow toilets flush efficiently
  • Universal design is quieter, helps save water, and is easy to install
  • 2X greater bowl refill for a more powerful flush than standard designs
  • EZ-Twist height adjusts from 9 in. to 14 in. to fit more tanks
  • 7 year warranty

Buy Now

If you have a toilet that is running constantly, this video will show you how to fix the problem:

 

You could also watch this installation video for the 400H fill valve:

To download our free guide to fix common toilet problems please click here: Fluidmaster Toilet Repair Guide

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400CARP - PerforMAX® No Tank Removal Kit

The 400CARP PerforMAX® No Tank Removal Kit fixes most common toilet problems while reducing repair time by 30 minutes. It features the PerforMAX® toilet fill valve which is the quietest and most powerful solution to fix and upgrade your toilet. Also featured is the PerforMAX® 2” flush valve repair kit that fixes common flush valve problems while giving the user the capability to optimize toilet performance while saving water and money. This kit works with all 2” toilets including Kohler®, Toto® and American Standard®, and more. This kit is not designed for 3″ flush valve toilets.

  • Best for 1.28 & 1.6 GPF toilets
  • Adjustable for Maximum Performance and Water Savings
  • Hard Water Resistant
  • Solid frame for Ultimate Reliability
  • Anti-siphon operation, code approved

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400CARS - PerforMAX® Fill Valve w/ Seals

Not sure which specialty valve is in your toilet?

The PerforMAX® Fill Valve and Specialty Seal Kit takes the guess work out of repairing toilets with specialty flush valves.

This product fixes problems such as:

  • Noisy Toilet
  • Toilet turns on by itself
  • Constant running toilet or leaky toilet
  • Slow filling toilet
  • Toilet makes high pitch sound after flushing
  • Not enough water in toilet bowl

This kit fits the following Specialty Flush Valves:

  • Kohler AquaPiston – Yellow Seal
  • American Standard Champion 3 – Yellow Seal
  • American Standard Champion 4 – Blue Seal
  • Mansfield – Red Seal
  • Glacier Bay Dual Flush – Clear Seal

This kit provides you with these unique benefits:

  • PerforMAX® products provides optimal performance while saving water and money
  • Seal combination covers most specialty flush valves
  • Silicone seals last up to 10 times longer than standard flappers
  • Hard Water Resistant
  • Quick & Easy Install
  • 7 Year Warranty
  • Anti-siphon operation, code approved

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402CARHR - PerforMAX® Fill Valve & 2" Flapper

Want to fix and upgrade your toilet while saving water and money?

The PerforMAX® Toilet Fill Valve and Flapper Repair Kit is the best solution for common toilet problems, such as:

    • Noisy Toilet
    • Toilet turns on by itself
    • Constant running toilet or leaky toilet
    • Toilet has weak flush or will not flush
    • Slow filling toilet
    • Toilet makes high pitch sound after flushing
    • Not enough water in toilet bowl

The PerforMAX® All-In-One Kit is the premium solution to make your 2″ toilet run like new!

Note: This kit works well with all 2″ toilets including Kohler®, TOTO® and American Standard®

        • PerforMAX® products provide optimal performance while saving both water and money
        • Built in Microban® fights flapper breakdown due to bacteria on the flapper itself
        • Solid frame flapper eliminates twisting and ghost flushing
        • Hard water resistant
        • Anti-siphon operation, code approved

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400ARHRFCS - PerforMAX® Kit for 2" Flush

Want to fix and upgrade your toilet?

The PerforMax® Toilet Fill Valve, Flapper and Click Seal Connector Kit is the best solution for common toilet problems, such as:

  • Noisy Toilet
  • Toilet turns on by itself
  • Constant running toilet or leaky toilet
  • Toilet has weak flush or will not flush
  • Slow filling toilet
  • Toilet makes high pitch sound after flushing
  • Not enough water in toilet bowl
  • Deteriorating or damaged connector

The PerforMax® Toilet Fill Valve, Flapper and Click Seal Connector Kit is the premium solution to repair your toilet at the most common leak points!

Note: This kit works with all 2” toilets including Kohler®, Toto® and American Standard®.

  • PerforMAX® products provide optimal performance while saving water and money
  • Built-in Microban® fights flapper breakdown due to bacteria
  • Chlorine and hard water resistant Flapper**
  • Solid frame flapper for ultimate reliability – no twisting and best seal every time and eliminates ghost flushing
  • Click Seal® Connectors reduce risk of overtightening – clicks when proper seal is made
  • Length of connector is 12 inches
  • Anti-siphon operation, code approved

** DO NOT USE IN-TANK DROP-IN TOILET BOWL CLEANERS CONTAINING BLEACH OR CHLORINE. USE OF SUCH PRODUCTS WILL RESULT IN DAMAGE TO TANK COMPONENTS AND MAY CAUSE FLOODING AND PROPERTY DAMAGE. USE OF SUCH PRODUCTS WILL VOID THIS WARRANTY. Instead, we recommend using Flush ‘n Sparkle® automatic toilet bowl cleaner.

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400CAR3 - PerforMAX® Kit for 3" Flush

Having trouble with your toilet with a 3″ Flush Valve?

The PerforMAX® Fill Valve and 3″ Flapper Kit is the best solution for 3″ toilets that are having problems such as:

  • Noisy Toilet
  • Toilet turns on by itself
  • Constant running toilet or leaky toilet
  • Toilet has weak flush or will not flush
  • Slow filling toilet
  • Toilet makes high pitch sound after flushing
  • Not enough water in toilet bowl

The PerforMAX® Fill Valve and 3″ Flapper Kit is the premium solution to fix and upgrade your 3″ toilet!

Note: This kit works with any 3″ flush valve toilet.

  • PerforMAX® products provide optimal performance while saving water and money
  • Silicone seal lasts up to 10 times longer than standard flappers
  • Hard water resistant
  • Solid frame flapper for ultimate reliability – no twisting and best seal every time and eliminates ghost flushing
  • Anti-siphon operation, code approved

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400ARHRK - PerforMAX® All-In-One Repair Kit

Not sure what is wrong with your toilet?

The PerforMax® All-In-One Toilet Repair Kit is the best, comprehensive, solution for common toilet problems, such as:

This product fixes problems such as:

  • Noisy Toilet
  • Toilet turns on by itself
  • Constant running toilet or leaky toilet
  • Toilet has weak flush or will not flush
  • Slow filling toilet
  • Toilet makes high pitch sound after flushing
  • Not enough water in toilet bowl
  • Deteriorating or damaged flush valve
  • Old or damaged lever

The PerforMax® All-In-One Kit is the premium solution to make your toilet run like new!

Note: This kit works with all 2” toilets including Kohler®, Toto® and American Standard®.

This kit provides you with these unique benefits:

  • PerforMAX® products provides optimal performance while saving water and money
  • Solid frame eliminates twisting and ghost flushing
  • Chlorine and Hard Water Resistant Flapper**
  • Quick & Easy Install
  • 7 Year Warranty
  • Fits all brands
  • Anti-siphon operation, code approved

 

  • ** Fluidmaster recommends not using drop-in chlorine tablets as they may damage toilet parts. Instead, we recommend using Flush ‘n Sparkle® automatic toilet bowl cleaner.

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402CARHR - PerforMAX® Fill Valve & 2-in. Flapper

Want to fix and upgrade your toilet while saving water and money?

The PerforMAX® Toilet Fill Valve and Flapper Repair Kit is the best solution for common toilet problems, such as:

  • Noisy Toilet
  • Toilet turns on by itself
  • Constant running toilet or leaky toilet
  • Toilet has weak flush or will not flush
  • Slow filling toilet
  • Toilet makes high pitch sound after flushing
  • Not enough water in toilet bowl

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The PerforMAX® All-In-One Kit is the premium solution to make your 2″ flush valve toilet run like new!

Note: This kit works well with all 2″ flush valve toilets including Kohler®, TOTO® and American Standard®

  • PerforMAX® products provide optimal performance while saving both water and money
  • Built in Microban® fights flapper breakdown due to bacteria on the flapper itself
  • Solid frame flapper eliminates twisting and ghost flushing
  • Hard water resistant
  • Anti-siphon operation, code approved
  • 7-year warranty

Consider upgrading to the 2″ Everything Kit

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To download our free guide to fix common toilet problems please click here: Fluidmaster Toilet Repair Guide

Please watch this video to see how easy it is to install this Kit:

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400CARP - PerforMAX® No Tank Removal Kit

In an independent study, Storables.com rates this kit as one of the best toilet repair kits for 2023. Click here to read the article: Best Toilet Fill Valve

  • Best for 1.28 & 1.6 GPF toilets
  • Adjustable for Maximum Performance and Water Savings
  • Hard Water Resistant
  • Solid frame for Ultimate Reliability
  • Anti-siphon operation, code approved

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This kit takes the guessing out of fixing your toilet, it comes with a universal flapper system that adheres to any toilet surface, metal, plastic and ceramic. The peel and stick design can repair and replace old flush valve drains without the need to remove the tank in minutes. The high performance fill valve with twice the refill power of a standard fill valve will refill the toilet bowl to the proper or optimum water level with every flush. The fill valve comes with a flow regulator that will quietly fill the tank without excessive water fill noise.

If you have a modern toilet that is wasting water, then replace the parts with this easy to use kit without removing the toilet tank. Best used with 2 piece (toilets with a removable tank) toilets. This kit works with all 2” toilets including Kohler®, Toto® and American Standard®, and more. This kit is not designed for 3″ flush valve toilets. 

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To download our free guide to fix common toilet problems please click here: Fluidmaster Toilet Repair Guide

Please watch this video to see how easily you can install this kit:

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400CAR3 - PerforMAX® Kit for 3-in. Flush

Having trouble with your toilet with a 3″ Flush Valve?

The PerforMAX® Fill Valve and 3″ Flapper Kit is the best solution for 3″ flush valve toilets that are having problems such as:

  • Noisy Toilet
  • Toilet turns on by itself
  • Constant running toilet or leaky toilet
  • Toilet has weak flush or will not flush
  • Slow filling toilet
  • Toilet makes high pitch sound after flushing
  • Not enough water in toilet bowl

Read More
The PerforMAX® Fill Valve and 3″ Flapper Kit is the premium solution to fix and upgrade your 3″ flush valve toilet!

Note: This kit works with any 3″ flush valve toilet.

The features of this product are:

  • PerforMAX® products provide optimal performance while saving water and money
  • Silicone seal lasts up to 10 times longer than standard flappers
  • Hard water resistant
  • Solid frame flapper for ultimate reliability – no twisting and best seal every time and eliminates ghost flushing
  • Anti-siphon operation, code approved

Consider upgrading to the 3″ Everything Kit

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Watch this video to see how to install this product:

To download our free guide to fix common toilet problems please click here: Fluidmaster Toilet Repair Guide

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400ARHRFCS - PerforMAX® Kit for 2-in. Flush

Want to fix and upgrade your toilet?

The PerforMAX® Toilet Fill Valve, Flapper and Click Seal Connector Kit is the best solution for common toilet problems, such as:

  • Noisy Toilet
  • Toilet turns on by itself
  • Constant running toilet or leaky toilet
  • Toilet has weak flush or will not flush
  • Slow filling toilet
  • Toilet makes high pitch sound after flushing
  • Not enough water in toilet bowl
  • Deteriorating or damaged connector

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The PerforMAX® Toilet Fill Valve, Flapper and Click Seal Connector Kit is the premium solution to repair your toilet at the most common leak points!

Note: This kit works with all 2” toilets including Kohler®, Toto® and American Standard®.

The features of this product are:

  • Toilet Flapper is Chlorine and hard water resistant**
  • Solid frame flapper for ultimate reliability – no twisting and best seal every time and eliminates ghost flushing
  • Click Seal® Connectors reduce risk of overtightening – clicks when proper seal is made
  • Length of connector is 12 inches
  • Anti-siphon operation, code approved

Consider upgrading to the 2″ Everything Kit

To download our free guide to fix common toilet problems please click here: Fluidmaster Toilet Repair Guide

** DO NOT USE IN-TANK DROP-IN TOILET BOWL CLEANERS CONTAINING BLEACH OR CHLORINE. USE OF SUCH PRODUCTS WILL RESULT IN DAMAGE TO TANK COMPONENTS AND MAY CAUSE FLOODING AND PROPERTY DAMAGE. USE OF SUCH PRODUCTS WILL VOID THIS WARRANTY. Instead, we recommend using Flush ‘n Sparkle® automatic toilet bowl cleaner.

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400ARHRK - PerforMAX® All-In-One Repair Kit

Complete toilet tank repair kit for toilets that use 1.6 gallons per flush or less like the 1.28 gpf toilets. If your toilet has a 2″ flush valve, then this is the kit for you. Most of these toilets were manufactured after 1994.

Home Improvement Expert, Bob Vila, has named the 400ARHRK as the “best overall” toilet repair kit on his website. Click here to see Bob Vila’s top picks for toilet repair kits: Bob Vila’s Best Toilet Toilet Repair Kits

Not sure what is wrong with your toilet?

The PerforMAX® All-In-One Toilet Repair Kit is the best, comprehensive, solution for common toilet problems, such as:

This product fixes problems such as:

  • Toilet turns on by itself
  • Noisy toilet
  • Constant running toilet or leaky toilet
  • Toilet has weak flush or will not flush
  • Slow filling toilet
  • Toilet makes high pitch sound after flushing
  • Not enough water in toilet bowl
  • Deteriorating or damaged flush valve
  • Old or damaged lever

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The PerforMAX® All-In-One Kit is the premium solution to make your toilet run like new!

Note: This kit works with all 2” toilets including Kohler®, Toto® and American Standard®.

This kit provides you with these unique benefits:

  • Solid frame eliminates twisting and ghost flushing
  • Saves water and money
  • Toilet Flapper is Chlorine and Hard Water Resistant**
  • Quick & Easy Install
  • 7 Year Warranty
  • Fits all brands
  • Anti-siphon operation, code approved

Consider upgrading to the 2″ Everything Kit

To download our free guide to fix common toilet problems please click here: Fluidmaster Toilet Repair Guide

** DO NOT USE IN-TANK DROP-IN TOILET BOWL CLEANERS CONTAINING BLEACH OR CHLORINE. USE OF SUCH PRODUCTS WILL RESULT IN DAMAGE TO TANK COMPONENTS AND MAY CAUSE FLOODING AND PROPERTY DAMAGE. USE OF SUCH PRODUCTS WILL VOID THIS WARRANTY. Instead, we recommend using Flush ‘n Sparkle® automatic toilet bowl cleaner.

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News

Other About Fluidmaster Pages

< Back to News

400AH - PerforMAX® Fill Valve

  • Quietest, most powerful solution to fix and upgrade your toilet
  • Easy to install, Universal fit
  • 2X greater bowl refill delivers a more powerful flush for 1.6 or lower GPF toilets
  • Water saving roller clamp lets you regulate the fill level in the bowl
  • Best for newer, high efficiency toilets (HET), 1.6 gallons or less
  • EZ-Twist height adjusts from 10″ to 15″ to fit most tanks
  • 7 year warranty

The 400AH (formerly known as 400ARHRK) has been independently rated to be the best fill valve (top pick) for 2021 by SanitaryReview. To read the review, please click here: SanitaryReview

To download our free guide to fix common toilet problems please click here: Fluidmaster Toilet Repair Guide

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Fluidmaster® recommends the PerforMAX® fill valve for toilets manufactured from 1994 to the current time (works on older toilets). If you are replacing the fill valve, we recommend you also replace the flapper with the 502 flapper for the best performance. The 502 flapper works on both old and new 2 inch flush valve toilets.

The most powerful toilet fill valve on the market. The 400AH is also known as the 400ARHR. With efficient and ultra-quite fill the 400AH replaces other inefficient, or outdated fill valve designs. Help prevent excessive or inadequate bowl fill levels. The 400AH is a code approved, anti-siphon design, that won’t contaminate the fresh water supply. Some toilet models not supported: Glacier Bay® or Niagara® Flapperless Toilets, One Piece Toilets. Does not replace Side Entry Valves. Fluidmaster’s late Founder invented the fill valve technology in 1958.

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Watch this video on how to install Fluidmaster PerforMAX®:

To better understand how the 400AH PerforMAX® is different than the 400A fill valve, please watch this short informative video:

To check your toilet’s flush volume, please click here.