Toilet Flappers

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Toilet Flappers

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The 5403 - Universal Adjustable 3" Flapper is available online, from our following retail partners.
IN THE UNITED STATES:
IN CANADA:

5403 - Universal Adjustable 3" Flapper

Flapper for Toilet
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Quickly solve common leak and running toilet problems with Fluidmaster®’s 5403 3” Water-Saving Adjustable Flapper. Made for newer 3” flush valve toilets, this model is a fast and simple install. The adjustable flapper arms, and universal design ensure it will quickly fit most 3” flush valve toilets.

  • Stop a running toilet and optimize your flush with the 5403 Water-Saving Flapper
  • Universal – Fits most 3” flush valves
  • Fits American Standard®, Kohler® Cimmaron, Toto® and other toilets
  • Easy to install
  • Adjustable dial for flush performance and water savings
  • Long lasting silicone seal
  • Chlorine and hard water resistant**
  • Solid frame for the best seal- no twisting
  • 10 year warranty

Home Improvement Expert, Bob Vila, independently rates the 5403 flapper as the best overall 3-inch flapper for running toilets. Click here to see Bob Vila’s top picks for flappers: Bob Vila’s Best Flapper Replacements

Sensible Digs, a website dedicated to helping homeowners, picked the 5403 flapper as the “most durable toilet flapper” of 2021.

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

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Best for newer toilets, 1.28 & 1.6 GPF (after 1994).  Customize your flush and save water with the adjustable dial, simply turn to adjust for more or less depending on your needs.  This long lasting flapper also features a durable silicone seal that lasts up to 10x longer than standard designs. Eliminate leaks and save water with quality you can trust, the Fluidmaster® 5403 Universal Adjustable 3” Toilet Flapper.

You could also choose to install Fluidmaster’s 513A flapper which is our newest 3 inch Water-Saving Adjustable Flapper. The 513A flapper has added features or the frame assembly adapters that will allow you to connect to both the Mansfield and Cato toilets besides all other brands of toilets.

** 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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5403 - Universal Adjustable 3" Flapper

Download Installation Instructions

FLUIDMASTER RECOMMENDS

  • Also Replace
  • ENHANCE

Frequently Asked Questions

  • How is the 5403 flapper different than 5401 3’ flapper?

  • What is the difference between solid frame and flexible frame flappers? Does one have more advantages than the other?

  • What size flapper do I need?

  • How do adjustable flappers work?

Problems It Fixes

WARNING:

Cancer and Reproductive Harm - www.P65Warnings.ca.gov.

Find a Store

BUY ONLINE

The 5403 - Universal Adjustable 3" Flapper is available online, from our following retail partners.
IN THE UNITED STATES:
IN CANADA: