McDonnell & Miller 349500 Hook-Up 30067439-890 This dual vent pressure switch

This dual vent pressure switch features a trip point of -0

It is compatible with all common CFC

Multi-Pole Versatility: The combination of 2SPST and 1SPDT contacts allows for simultaneous control of independent voltage control circuits

while the EQE Body 168150 is externally equalized with a 1/4" ODF port

McDonnell & Miller 349500 Hook-Up 30067439-890 This dual vent pressure switchThe McDonnell & Miller 349500, also identified by model number SA159 24, is a specialized lower quick hook up fitting engineered for seamless integration with steam boiler safety controls. This critical component serves as a direct replacement part for the McDonnell & Miller Series 47 and 47 2 mechanical water feeders, as well as the Model 64 A, 42A, 67, and 42S A low water cut offs. Designed for professional installation, it enables a reliable