American Standard Uhet Flapper - AMS-7381273-201

It is the toilet tank flapper for American Standard uHET (ultra high efficiency toilet) tanks. The flapper is the rubber seal that drops over the flush valve opening and holds water in the tank until the trip lever lifts it. When a toilet runs continuously or won't hold its flush volume, a worn flapper is the usual cause, and it's a replacement part rather than a complete flush valve assembly.

Order by manufacturer part number 7381273-201.0070A. American Standard flappers are tank-specific, so matching the number rather than the visual shape is what keeps a uHET tank sealing at the flush volume it was designed for.

If the leak is at the flush valve seat, yes. A flapper that has hardened or warped lets water seep from the tank into the bowl, which reads as a toilet that cycles on its own. Swapping the flapper is a tank-side repair with the water off and the tank drained, no tools needed for most American Standard tanks. If water is instead spilling into the overflow tube, the problem is the fill valve setting, not the flapper.

On a uHET tank that's a risk. Ultra high efficiency toilets meter their flush volume partly through flapper timing and seat geometry, so a generic flapper can change how long the valve stays open and throw off the flush. The 7381273-201.0070A is the American Standard part matched to that tank, which is why it is the safer swap for maintaining flush performance on a fleet of identical units.

No color or finish choice is involved. The uHET flapper ships in one configuration only, with no finish option, so there is a single part to order rather than a matrix of variations.