Jabsco Drill Pumps provide a very versatile means of transferring fluid almost anywhere an electric drill with 1/4″ to 3/8″ (6 mm to 10 mm) chuck can be operated. They provide easy, powered pumping almost anywhere a hand utility pump might be used. Features Pump (boxed) with two GHT port adapters Supplied with 3/4″ (19mm) garden hose thread port adapters Specifications Output pumps: Up to 3.5 GPM (13 LPM) Fitting connection ID hose: 1/2″ (13 mm) GHT female threaded fitting: 3/4″ (19 mm) Self-Priming: 3′ (1 m) Diameter shaft: 1/4″ (6 mm) Length: 3 5/16″ (84 mm) Width: 3 1/2″ (89 mm) Height: 2 3/16″ (56 mm) Weight: 0.5 lb (0.2 kg)