Review on High-Quality American Standard Tank to Bowl Coupling Kit - Model 7301021-0070A by Ron Houston

. 1) The metal tool shown in the photo has been replaced with an inferior plastic tool (I bought this set specifically for the metal tool). 2) This was purchased new but the bag containing the small pieces was opened and a huge 2" oval hole was cut in the clear plastic bag. UPDATE: Thank goodness I bought this. After 1 day the sponge gasket from the Korky 3 inch flush valve replacement kit was not sealing the tank (several attempts). This worked great on the first try. Note: It was used in a standard American model 4260 toilet (replacing the original Mansfield flush valve) for a tank with a 3.75" hole (for the flush valve).