Rule-Mate® Automatic Bilge Pump (500 GPH)

500 GPH. Discharge 3/4". Higher flow - Optimized impeller to provide up to 10% more flow at the same amperage as the previous models. Auto sense intelligence - Integral water level sensor controls the pump automatically. Backup feature - Prevents continuous running if the sensor is fouled by debris, the pump reverts to a 2.5-minute cycle mode. Built-in thermal cut-off. Back flow prevention. Hidden air vents in the body. Threaded discharge. Includes check valves. Height 4.4", width 6". 12 volt.