Skip to content
Enjoy fast and free shipping on all orders over $89! Contact us (855) 424-4376
Enjoy fast and free shipping on all orders over $89! Contact us (855) 424-4376

Stop a running toilet with the Fluidmaster 504 Universal Chlorine-Resistant Toilet Flapper.

The 504 Flapper is built to last in any water condition with its chlorine resistant properties. Featuring a flexible design, the 504 flapper offers the versatility of fitting both flush valves with or without mounting ears. This flapper fits most 2” brass and plastic flush valves and is suitable for 3.5+ gallons per flush toilets.

Only Fluidmaster has toilet flappers with built-in Microban® protection. Not just simply a coating, Microban® is specially built into the construction of our flappers to fight flapper breakdown and combat bacteria.

  • Flexible design – fits on flush valves with or without mounting ears
  • Fits most 2” flush valves
  • Built-in Microban®
  • Chlorine and hard water resistant

Installation Instructions

Blog posts

  • 5 Ways to Use a Snow-Melting System
    September 30, 2023

    5 Ways to Use a Snow-Melting System

    While snow-melting systems might seem like an extravagance, their multi-faceted applications and their long-term benefits make them a judicious investment. They add value to your property and significantly improve the quality of your life during winter
    Read now
  • Winter Preparedness with Snow Melt Mats
    September 27, 2023

    Winter Preparedness with Snow Melt Mats

    As winters become more unpredictable, reliable and efficient snow removal solutions are critical. Snow melting systems offer a modern, safe, and environmentally friendly alternative to traditional snow removal methods.
    Read now
See more

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare