Always cross-reference your heater's nameplate before installation

The B1370738 is a drop-in replacement for legacy part numbers B13707-38

As an essential part of automated climate control systems

Industrial Durability: Balanced 3-blade design reduces mechanical wear on the motor shaft and bearings

Durable Construction: Features a 36T series TOD switch housed with an enclosed disc face to protect contacts from combustion byproducts

Hydrotherm BM-3354 Coupling 30067439-890 Always cross-reference your heater's nameplateThe Hydrotherm BM 3354 is a critical 2 inch Aeroquip coupling engineered for high performance fluid transfer within hydronic heating systems. Designed specifically for seamless integration with Hydrotherm boiler parts, this industrial grade coupling facilitates a secure, leak free connection between piping components. The BM 3354 is constructed from durable alloys capable of withstanding the thermal expansion and high pressure demands common in