groz 44195 dpp-1 double diaphragm fuel transfer pump. High volume double acting diaphragm hand pump used for compressed air/power pumps are not easily available such as farms, ranches, construction sites boats etc. This pump is complete with 2 inch bung, telescopic suction tube with non-return valve along with a 8′ anti-static discharge hose assembly nozzle. Heavy duty steel handle is equipped with a security locking latch to prevent fuel theft. Pump inlet is fitted with easy to clean wire mesh screen. Pump is constructed of die cast aluminum. This will fit 15 to 55 gallon drums. Discharge up to 28 oz./stroke. Recommended with: gasoline, diesel fuel, kerosene, fuel oil, motor oil. Hi volume discharge 1 gallon per 5 strokes (800 ml/stroke).