1,100 GPH. Discharge 1″ and 1-1/8″. 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″. 24 volt.