Aluminum alloy casing is used in this kind of machinery that high heat-scattering efficiency, keeping the pump cooler and extending the life. The design of a great starting moment is easy for starting and high efficiency, which can keep it working perfectly even is lower ambient temperature and lower volt. 1/4 inch SAE and 1/2 inch ACME inlet fittings, easy to read sight glass, easy access oil fill port, and angled oil drain valve for faster, more complete draining of the reservoir. 110 V / 60 Hz.