This adapter connects GE/Whirlpool portable dishwasher fill and drain hose assembly to faucet with inside thread 15/16" - 27 and outside thread 55/64" - 27. It comes with two rubber washers with thicknesses of 1/8" and 3/16" to fit faucet depth. One end with both inside and outside threads goes to faucet and the other end without thread will be snaped on to quick connect-disconnect coupler of the fill and drain hose assembly.