Zoeller 4014255 5.7 x 13.82 x 15.7 in. Basement Sentry 1200 GPH Thermoplastic Diaphragm Switch AC Submersible Backup Sump Pump, Black

Pumps up to 20 GPM. Works during power failures Can be mounted horizontally in rafters or vertically in a sump basin. Comes 100% pre-assembled