Toilet Flappers

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513A-016 Universal 3" Flapper

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

This flapper will fix:

  • Constantly running toilet
  • Weak or Double Flush
  • Replaces leaking & worn out flapper

This universal toilet flapper fits more toilet brands including American Standard, Kohler, Gerber, Toto, Glacier Bay. The 513A flapper features simple adjustable flapper arms, that will adapt to fit more 3 inch flush valves and comes with interchangeable frame arm adaptors to fit specialized flush valves that are used in both Mansfield and Cato toilets. You also can customize the flush by simply turning the adjustable bulb for a stronger flush in the bowl.  This long lasting flapper also features a durable silicone seal that lasts up to 10x longer than standard designs.

  • Replaces more models of 3 inch toilet flappers
  • Fits specialized flushing systems used by Mansfield and Cato models
  • Fits more toilet brands including American Standard, Kohler, Gerber, Toto and more
  • Easy to install, Easy to find!
  • 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:

Frequently Asked Questions

  • What is a toilet flapper?

  • What size of toilet flapper do I need?

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

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: