Bulkhead Tank Fitting, Body Material PVC, Pipe Size 4 in, Connection Type Socket x Socket, Required Hole Size 5 3/4 in, Gasket Material EPDM, Max. Pressure 150 psi, Max. Wall Thickness 2.45 in, Length 5 3/4 in, Temp. Range 40 Degrees to 140 Degrees F, Color Gray