Robinair's No 15600 CoolTech 2-stage rotary vane design vacuum pump features a 6 CFM free air displacement along with the power and capacity needed for a wide range of service applications. This high-performance unit includes a heavy duty, 1/2 HP, 115V/60Hz thermally protected motor that delivers high torque for easy startup and efficient operation. Factory rated to 15 microns, this unit delivers a fast, thorough evacuation. Offset rotary vanes build powerful compression within the pumping chamber - reducing pressure and vaporizing moisture. Gas Ballast design mixes moisture laden air passing through pump with relatively dry air so compression doesn't cause condensation. Iso-Valve isolates pump from system with just a quarter turn. Durable molded polycarbonate base improves pump balance and minimizes vibration while in operation. Also includes: 1/4", 3/8" and 1/2" male flare inlet fittings, easy to read sight glass, easy access oil fill port, and angled oil drain valve for faster, more complete draining of...