Smooth flow Dry running capability Soft noise absorbing mounts Snap-fit port fittings Corrosion-resistant materials Meets USCG regulation 183.410 and ISO 8846 MARINE (ignition protection) eets EN 50081-1 electro magnetic compatibility Pressure: 20PSI (Cut-in), 40PSI (Cut-out) Material: Glass Filled Polypropylene Body, Santoprene Diaphragm, EPDM Valves