The Korky Plus 2 inch Toilet Tank Flapper (3 Pack) is the #1 selling toilet flapper in the US. The exclusive longest lasting red rubber resists chlorine, bacteria, city water treatment, hard water, and well water. It is recommended by the Clorox help line. Made of flexible rubber for a tight seal and easy to install, the 2001TP toilet parts include: (3) 2001 Toilet Flappers and (3) Stainless Steel Chains.