3'' Toilet Flange Tank To Bowl Coupling Kit, For American Standard Champion 4 3-inch toilet water tank to toilet connection kit, suitable for American Standard Champion 4 toilet parts AS738756-0007A, including gaskets, bolts and other basic parts for most 3-inch flush valve opening water tanks The toilet tank replacement kit has a 3" diameter inner gasket and is suitable for most two piece toilets and is the nice replacement kit compatible with American Standard AS738756-0070A models,this kit is a complete solution for tank to bowl coupling A must-have tool for repairing most two-piece toilets, including American Standard Champion 4 models Tank 4266/4272/4021/4281/4019 and other toilets Toilet Tank Replacement Kit The repair process is also very easy and quick, keep in mind that the rubber washer should be up against the toilet tank AS738756-0070A toilet components are made of high-quality anti slip rubber material, ensuring long-lasting durability and reliability