Victaulic® FireLock® Check Valve, Series: 717, 10 in Nominal, Grooved, 365 psi Maximum, Specifications Met: ASTM A536, Grade 65-45-12, cULus Listed, 17 in Inlet to Outlet Length, 7.09 in Top to Inlet Center, Ductile Iron Body, Black Painted, 10-3/4 in OD