Attwood Pump Hd 2000 12VHeavy Duty bilge pumps integrate the highest quality bearings, brushes, alloys and magnets designed to withstand extreme usage cycles. The pump employs an exclusive shaft and motor compartment, reducing wear and significantly extending pump life. Enhanced Stainless steel motor shaft resists corrosion. Advanced resin compositions incorporated in exterior to resist chemicals such as engine oil, aggressive detergents and hose plasticizers. Unsurpassed