Toilet Flush Valve Replacement: Works with 2/2.5inch(65mm - 75mm) one piece toilet tank hole flush valves. Including TOTO, American Standard, HOROW, DeerValley, Eljer, Ferguson, Gerber, Glacier Bay, Jacuzzi, Mansfield, Pegasus, and other common 2inch one piece toilet flush valve. Not compatible with two piece toilets Eliminates Toilet Leaks: Eliminates common leaky toilet problems due to a worn-out valve and gasket, saves water and stops leaks at the toilet tank Convenient Valve Design: Constructed of durable plastic, 304 stainless steel and the silicone seal is chemical resistant and will not warp.Easy adjustable overflow tube can cutting for your need specifications Easy To Install: Easy to installation, in less than 20 minutes with NO TANK REMOVAL required Toilet Tank Fittings: Please measure the above dimensions before buy it. This will prevent you from receiving unsuitable products and waste your time 2-Inch Flush Valve Replacement for 1 Piece Toilets Product Specifications: Material:Plastic, Rubber ‎Item Weight: 0.4lb Package Including: One Piece Toilet Flapper Valve *1 Feature:    Only suitable for one piece toilet tank diameter with :2.5″-2.95″(65mm - 75cm). Improve your experience and save water Please check the dimensions carefully Notes: Please check the size in the second image before buying. All dimensions are measured manually and there may be small deviations. Our aim is to provide top level customer service, please feel free to contact us;so that we can try our best to solve any problem. Thank you very much!