[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.

This is the product's overall performance score, based on data collected from WELS (Water Efficiency Labelling and Standards) along with a variety of popular retailer sites.

This is the product's overall performance score, based on data collected from WELS (Water Efficiency Labelling and Standards) along with a variety of popular retailer sites.