Basement Watchdog BW4000 Combination Primary & Backup Pump System Oil Base Aluminum handle with rubber grip

Aluminum handle with rubber grip

Includes brass barbs

Non-replaceable bulb

Extreme Speed Channel for fast chip removal

Basement Watchdog BW4000 Combination Primary & Backup Pump System Oil Base Aluminum handle with rubber gripCombination Primary & Battery Backup Sump Pump System Includes a Basement Watchdog AC pump and a Basement Watchdog battery backup system. The Basement Watchdog Combination sump pump system is designed to provide both primary and backup pumping capabilities. The primary pump will operate as long as it is receiving AC power. If the power is interrupted, or more water is coming into the sump than the AC pump can handle, the backup sump pump will begin