providing superior stability and linear resistance output across a wide operating range of -40°F to 210°F

bird nest obstruction

ready for direct mounting to a conduit knockout

the unit can be mounted in any position

the control board flashing a pressure switch error code (often 2 or 3 blinks)

Watts 0360281 Valve Els PW 17895 providing superior stability and linearThe Watts 0360281 Valve (Series M375 M1) is an essential safety component for contractors managing hot water heating and domestic supply boiler systems. This 3 4" boiler pressure relief valve is engineered to protect equipment from catastrophic failure caused by excessive thermal expansion or mechanical malfunction. Featuring a durable brass body construction and a high strength stainless steel spring, it is factory set to a 75 PSI relief pressure.