Complete Set 2 pieces auto lift car machine hoist lowering valve pressure relief valve Premium Material Made of metal, this lowering valve assembly is solid, sturdy, and built for long service life Universal Fit This pressure relief valve is designed to fit most auto lift car machines Function This lowering valve pressure relief valve maintains safe and stable pressure; in case of overpressure, the valve fully opens to release pressure promptly Auto Lift Car Hoist Machine Parts Replacement parts for lift car hoist machines, including check valve, unloading valve, lowering valve, and pressure relief valve for auto lift car hoist machine repair Specification: Material: Metal Size Chart: Length x Screw Diameter: 7.2cm x 2cm / 2.83inch x 0.79inch 7.2cm x 1.9cm / 2.83inch x 0.75inch 5.8cm x 2cm / 2.28inch x 0.79inch 5.8cm x 1.9cm / 2.28inch x 0.75inch Package Includes: 1 x Lowering Valve Pressure Relief Valve Set Note: Please allow slight variations of 1-2cm due to manual measurement