The DrillPump750™ is designed to work with most electrical drills with a maximum speed of 2,800 RPM. This water transfer pump is ideal for draining small ponds, fish tanks, small pools or even a flooded basement. The hose connection is 3/4” and uses any standard garden hose. The unit pumps up to 750 gallons per hour and is self-priming up to 12 feet. The 3/8” shank on this unit fits all common chucks for most drills. DrillPump750™ Features: Unit pumps up to 750 gallons per hour Self-priming up to 12 feet 3/8” shank on this unit fits all common chucks Standard garden hose connection Tips & Tricks: Never run the DrillPump750™ in reverse DrillPump750™ will not turn by hand, this must be chucked to the drill. DrillPump750™ must be mounted for proper usage, do not hold in hand. The hoses should be in good condition, include a gasket, and be completely tightened for priming After every use apply a small amount of silicone grease. To apply, remove the black housing screws and cover, and put a bit of grease on the housing where the rubber fan blades touch, then reassemble. Any spray lubricants, such as WD-40, are not recommended, as they do not provide sufficient lubrication for this product and can cause damage to the internals of the pump. Do not get the drill wet, or use the drill pump with flammable liquids.