Toilet Flappers

Products > Toilet Flappers

Toilet Flappers

BUY ONLINE

The 513A-016 Universal 3" Flapper is available online, from our following retail partners.

IN THE UNITED STATES:

IN CANADA:

513A-016 Universal 3" Flapper

Fluidmaster 3

Fluidmaster 3

Fluidmaster 513A Toilet Flapper

Fluidmaster 3

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

English

Frequently Asked Questions

What is a toilet flapper?
- A flapper valve is a type of valve used in flush toilets. It creates the watertight seal in the toilet tank that holds the water until flushing.
How do I know what flappers to buy for my toilet
- The simplest way to determine which flapper to use is to measure the flapper that is already on the flush valve. To identify what size is needed measure the width of the flapper from end to end. If the flapper measures 3 inches across select a 2-inch flapper. If the flapper measures 4 inches across select a 3-inch flapper.
What size of toilet flapper do I need?
- Fluidmaster manufactures a universal 2” flapper and a universal 3” flapper. To determine the size of flapper you need, measure the drain hole the flapper covers, if the hole is 2.5 inches use a 2 inch flapper and if the drain hole is 3.5 inches use a 3 inch flapper. For more details on how to determine what size flapper you need, please click here: Measure Size of Flapper
What is the difference between the 513A and the 5403 flapper?
- The difference between the 513A and the 5403 flapper is the added feature or the frame assembly adapters on the 513A flapper that will allow you to connect to both the Mansfield and Cato toilets.
Are most toilet flappers 2 inch or 3 inch?
- The majority of toilets predating 2005 will be a 2-inch flapper. Toilets manufactured after 2005 can be 2 inches but most will be 3-inch flappers.
Are most toilet flappers universal?
- Yes, most toilet flappers are universal. The main differences in them are size and adjustability.
How do I know if my toilet flapper is bad?
- Ghost Flushing is a term used to describe a toilet that turns on and off on its own. This usually indicates a leak, although the sound is from a fill valve. The most common leak problem is a worn flapper. Another sign of a worn flapper is if you see water dripping into the bowl.
Can you just replace a worn flapper in a toilet?
- Yes, the flapper normally just clips onto the flush valve and can be replaced without taking off the tank or any other components inside the tank.

Problems It Fixes

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:

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