Toilet Repair Kits
Products > Toilet Repair Kits
K-400H-040-T5 - PerforMAX® Fill Valve & 3 inch Flapper Repair Kit
You can purchase this repair kit from the Fluidmaster Online Store
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:
K-400H-040-T5 - PerforMAX® Fill Valve & 3 inch Flapper Repair Kit
Frequently Asked Questions
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