What size toilet flapper do I have?

The flapper valve is what regulates water to the bowl. It is important that flappers are sized appropriately to maintain a proper seal needed for the toilet to both flush properly and control the flow of water to the bowl. Most toilet flappers are either a 2" or a 3" depending on the size of the drain opening from the tank to the bowl. When choosing a replacement flapper you will have to know what you currently have:

Flapper Style: Flexible Rubber or Solid Plastic Frame

Size: Either 2" or 3" (pre-1994 toilets are usually 2")

Flushing Capacity: 5 , 3.5 , 1.6 , or 1.28 gallon per flush toilet


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1. What is wrong with my toilet?
2. What size toilet flapper do I have?
3. How do I replace a toilet fill valve?
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8. Where is the pressure regulator located?
9. How do I adjust my pressure regulator?
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