AC-powered primary pump operates as long as power is available
Backup sump pump automatically begins pumping if the power is interrupted or if more water is coming into the sump than the primary pump can handle
Combination sump pump system offers primary and battery backup pump capabilities
User-friendly controller sounds an alarm, illuminates a warning light and describes what to do for easy maintenance
Compact design fits in pits with diameters as small as 12 in.