Flush SEAL FITS AMERICAN STANDARD CHAMPION & KOHLER TOILETS - Replaces American Standard part 738651-00700A and Kohler part GP1059291 TOILET SEALS QUICKLY FIX running and leaking toilets and eliminate costly water waste TOILET FLUSH SEAL MADE OF FLEXIBLE RUBBER for a tight seal on American Standard and Kohler flush valves EASY TO INSTALL, the 435BP toilet parts include: (2) Flush Valve Seal EXCLUSIVE LONGEST LASTING red rubber resists city water treatment, hard water, and well water