40" (6mm to 10mm)

Key Benefits: Dual-Tap Flexibility: Native support for 460V to 24V and 575V to 24V conversions

Consistent fin spacing ensures uniform air distribution across evaporator or condenser coils

allowing for flexible remote sensing in boilers

It utilizes a clockwise (CW) rotation and is configured with a 1/2-inch bore specifically located on the intake side for a secure fit on standard motor shafts

McDonnell & Miller RB-122E Control 30067439-890 40" (6mm to 10mm)The McDonnell & Miller RB 122E (Part Number 144676) is a heavy duty conductance type low water cut off designed specifically for residential and light commercial hot water boilers. As a veteran preferred electronic LWCO, it features a 120VAC power requirement and a 3 4" NPT connection, making it high performance protection against dry firing. This unit includes a patented self cleaning probe that reduces scale build upa common failure point in