Which is the right flapper for my toilet?

| by Will Wang
Which is the right flapper for my toilet?

Here is a quick tutorial on types of toilet flappers. The toilet flapper is a rubber mechanism in your toilet that opens to let water out of the toilet tank when you flush and closes to allow it to refill.

There are two types of flappers: Adjustable Flappers and Non-Adjustable Flappers. Each flapper is designed for specific flushing capacities of toilets. There are 4 main toilet flushing capacities that are commonly used in the United States today: 5 gallon per flush and larger, 3.5 gallon per flush, 1.6 gallon per flush and 1.28 gallon per flush toilets. Here are the flappers you should use for each flushing capacity: 

  1. Adjustable Flappers are designed to flush toilets that use 1.28 and 1.6 gallons per flush (GPF). These are toilets that were manufactured in 1994 or newer. Adjustable flappers come in both styles and in both size categories.
  2. Non-Adjustable Flappers are designed to flush toilets that use 3.5, 5 and larger gallons per flush (GPF). Toilets that were manufactured before 1994 are all considered to be the larger gallon per flush toilets. Non Adjustable Flappers come in both Styles but only in 1 size category: 2 inch.

Topics: Bathroom, Sinks & Toilets, Water Saving Devices

Companies: Fluidmaster


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