THE BASEMENT WATCHDOG Model BW4000 1/2 HP Combination Submersible Sump Pump with Cast Iron / Cast Aluminum Primary Sump Pump and Special CONNECT Battery Backup Sump Pump System (This Item Has Been
BW TECHNOLOGIES CR-4000 MULTI CHANNEL CONTROLLER 115VAC/230VAC FOR BE TECHNOLOGY | eBay
B&W outdoor.case Typ 4000 | B&W International
BW Technologies CR-4000 with channel 1, 2, 3, 4 and alarm relays (low/high)