Tough and reliable at a value priceRule Industries' Non-Automatic Submersible Electric BilgePump offers great performance at a value price. Rulesubmersible pumps' motors feature stainless-steel shafts,water cooling and vibration-free centrifugal impellersthat won't burn out if run dry. Strainer bases can easilybe snapped off for cleaning. Each pump requires a panelswitch for manual operation or a float switch forautomatic operation. (500gph 12V Bilge Pump, 3/4" Port, 1.9A Draw, 2.5A Fuse, 3-1/2"H x 2-3/8"W) Can run dry without damage Three-year warranty