Toilet Flappers

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513A-016 Universal 3" Flapper

Introducing the 513A Universal 3″ toilet flapper from Fluidmaster – the perfect solution to your toilet flapper needs!

With its innovative design, this flapper fits most 3-inch flush valves, making it a universal fit for almost any toilet. Not only is it easy to install, but it’s also incredibly durable. Made with high-quality materials, this flapper is designed to withstand years of use and abuse. And with its adjustable water usage feature, you can customize the amount of water that flows into your toilet bowl, saving you money on your water bill.

Fluidmaster’s 513A-016 toilet flapper will fit more 3″ toilets than any other brand.

So if you want a reliable and long-lasting toilet flapper that will save you money and give you peace of mind, look no further than the 513A Universal 3″ flapper from Fluidmaster.

This flapper will fix:

  • Constantly running toilet
  • Weak or Double Flush
  • Replaces leaking & worn out flapper
  • Fits specialized flushing systems used by Mansfield and Cato models
  • Fits more toilet brands including American Standard, Kohler, Gerber, Glacier Bay, Toto and more
  • Durable long lasting silicone seal
  • Chlorine and hard water resistant**
  • 10 year warranty

Please see the FAQ section below to determine if you have a 3″ toilet.

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.

If you have a Mansfield or Cato toilet, please watch this video on how to install the 513A flapper:

513A-016 Universal 3" Flapper

Download Installation Instructions

Frequently Asked Questions

  • What is a toilet flapper?

  • How do I know what flappers to buy for my toilet

  • What size of toilet flapper do I need?

  • What is the difference between the 513A and the 5403 flapper?

  • Are most toilet flappers 2 inch or 3 inch?

  • Are most toilet flappers universal?

  • How do I know if my toilet flapper is bad?

  • Can you just replace a worn flapper in a toilet?

WARNING:

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

BUY ONLINE

The 513A-016 Universal 3" Flapper is available online, from our following retail partners.
IN THE UNITED STATES:
IN CANADA: