Mayfair Aqua Jet Wash Down Pump 5.2 GPMQuiet and pulsation-free even at low speeds, the new Aqua Jet five-chamber diaphragm pump provides the perfect water pressure solution for both small and medium sized leisure and commercial boats. Whisper quiet operation; Five-chamber construction; Self-priming; Easy, low cost maintenance; Inline strainer and trigger nozzle included as standard; Long service life; Pump Body: Nylon; Valve Housing: Polypropylene; Valves: Nitrile;