Sub-base Common Exhaust, For Use With Mark 55 Series Valves, Number of Valve Stations 1, Valve Port Size 1/2 in, Cv 4.5, Solenoid Valve Manifold, Mark 55 Series, Length (In.) 7 5/8 in, Width (In.) 2 5/8 in, Height (In.) 2 5/8 in, Includes Assembly Hardware & Gasket