[EXTENSIVE COMPATIBILITY]: Carefully crafted to be a replacement for flappers in commonly used 2-inch flush valve toilets, such as American Standard, Kohler, TOTO, Mansfield, Gerber, and more.

Consider the 140,000 times you're likely to flush a toilet over a lifetime ... And while the $300 American Standard Champion and $240 American Standard Clean 2514.101, $300 at Lowe's, cleaned ...

The Champion 4 ... all-around toilet. Waste exits the bowl through a wide 2-3/8-inch trap way—larger than most toilets—and combined with the 4-inch flush valve, easily clears large masses ...