The Mansfield 211-1112 is a 2 inch flush valve designed for tank models, 125, 160, 161, 165, 170, 171, 175, 180, 181, and 190. The valve comes complete with the flush valve seal, stop cap, flush valve gasket, and the nut to secure the valve to the tank. This part used to be white, but has since changed to a black plastic. When replacing the complete flush valve it is highly recommended to replace the tank to bowl gasket as well. The red flush valve seal is part number 630-0030, and the clear plastic cap at the top of the valve is part number 225-5907.