Mr. Gasket 9710 Fuel Regulator Adjust Pressure from 1 to 6 lbs. Fits 5/16 inch and 3/8 inch inside diameter fuel line Includes fittings, hose and clamps Not for fuel injected systems, Max inlet pressure 9 PSI Includes brass fittings Adjusts fuel pressure from 1 to 6 pounds Fits 5/16 inch and 3/8 inch inside diameter fuel line Includes fittings, hose and clamps Not for fuel injected systems