MR GASKET ADJUSTABLE FUEL PRESSURE REGULATOR, STEEL, CHROME -- 1-6 psi; 1/8 in. NPT inlet; 1/8 in. NPT outlet; Single inlet; Single outlet; Gasoline; Non-Rebuildable; Non-return; Female inlet and outlet threads; Includes fittings, hose, and clamps; Designed to adjust fuel pressure from 1 to 6 lbs.; Fits to 0.83 in. and 0.38 in. I.D. fuel line; Not for use with fuel injected system.