Amarine-made 1500GPH 12v Boat Marine Plumbing Electric Bilge Pumps Small size, high efficiency, low current (low cost switching power supply supporting); to achieve a small size perfect combination of high flow Unique automatic "discharge" function can bear the long-term continuous operation under nearly congestion condition Impact resistant ABS housing Heavy duty motors with stainless steel shafts and tough. thermoplastic bodies submersible bilge pumps are tough enough for any bilge Heavy duty motors, offer high capacity output Water cooled long-life motors ; Ignition protection Water/moisture tight seals; Stainless steel shafts; Rustproof and corrosion resistant Snap lock strainer base for easy installation and removal; Silent and vibrationless operation