Smooth flow , Dry running capability , Soft noise absorbing mounts , Snap-fit port fittings , Corrosion resistant materials , Meets USCG Regulation 183.410 and IS , 8846 MARINE (ignition protection) , Meets EN 50081-1 Electro-magnetic Compatibility , About Body materials: Glass Filled Polypropylene , the Diaphragm: Santoprene Valves: EPDM , Port Type: 1/2 inch (13 millimeter) hose barb or thread , Voltage: 12 v DC , Motor Type: Thermal overload protection