Basement Sentry 1200 gph Thermoplastic Diaphragm Switch AC Submersible Backup Sump Pump, Zoeller, Mfr#: STWB140

This Basement Sentry complete battery backup sump pump system will replace an existing primary sump pump This pump provides additional protection against basement flooding for your peace of mind when the power goes out because it continues to pump during power outages or if the primary pump does not work Because the system is preassembled installation is quick and easy