
KOHLER GP1039444 Flapper for One-Piece Toilets
A genuine Kohler flapper for specific one-piece Class Five toilets. Check the tank number inside the tank before buying, since it fits only the listed models.
- Color
- Not specified
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A genuine Kohler flapper for specific one-piece Class Five toilets. Check the tank number inside the tank before buying, since it fits only the listed models.

A capable 2-inch flapper that lives up to its cross-brand claims once you confirm valve size first. Skip it if you haven't measured.

A 2-pack rubber flapper replacement sized for Gerber 99-788 and other 3-inch flush valve toilets, sold with two spare toilet handle chains for the next repair.

A Gerber toilet flapper identified only by its model number. The listing gives no size, material or fit, so match it against the old part or the maker catalog before ordering.

A durability-focused 2 inch flapper for households whose water or chlorine tablets chew through standard rubber flappers quickly.

A genuine Kohler two-inch flapper without a float for a long list of two-piece Kohler toilets, and also used in Sterling and Kallista models. Check the toilet model number against the list before ordering.

A replacement flapper sized for Toto three inch flush valves. The listing gives almost no detail on material, chain or exact Toto models.

A simple rubber flapper for fixing a running toilet without tools. Fit claims conflict, so check the flush valve size before buying.

A universal two inch red rubber flapper that adjusts to the toilet's original flush volume, sold in a three pack. It will not fit three inch flush valves or tank designs that use canisters instead of flappers.

A Fluidmaster kit that replaces the flapper and its drain seat together. The listing omits fit, material and instructions, and the quantity entry is unclear.
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