1/3 HP Battery Back-Up Emergency Sump Pump System with Alarm

Liberty's model 441 takes over when the power goes out. Operating from the power of a 12-Volt deep cycle battery, the 441 features an efficient 12-Volt pump, advance 3-stage charger with switch mode technology and easy wiring with slip connectors. The 441 is designed as a backup pump and designed to be used in conjunction with a 120-Volt primary pump. Battery sold separately.Audible in-use alarm and lightSelf-resetting 24 hours silenceAdvanced 1000 mAh switch mode chargerHigh output 12-Volt submersible pumpAutomatic, mercury free switchIncludes: control panel, battery box (battery not included), 12-Volt charge, tee, check valve and bushings for 1 in. or 1 in. connectionsMeets California CEC standardsBattery not included: group 27 or group 37 marine-type deep cycle batteries recommended, compatible with wet cell or AGM batteries