RB-122E | RESIDENTIAL LWCO 120V 144703 | Xylem-McDonnell & Miller

RESIDENTIAL LWCO 120V 144676 Xylem-McDonnell & Miller's RB-122E residential low water cut-off (LWCO) switch is designed to protect your boiler or hot water heating system from damage due to low water levels. The RB-122E is a 120-volt LWCO that features a brass body and a stainless steel float and switch assembly. It is suitable for use with all types of boilers and hot water heating systems. The RB-122E is easy to install and maintain. It comes with a 3/4-inch NPT connection and a 15-foot capillary tube. The switch is factory-set to close at 2 inches of water, but it can be adjusted to close at any level between 1 and 4 inches of water. The RB-122E is a reliable and affordable way to protect your boiler or hot water heating system from damage due to low water levels. Shop now at our HVAC supply store for the best prices and fast shipping!