40" (6mm to 10mm)

allowing for flexible remote sensing in boilers

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

this kit provides the technical reliability required for critical pressure drop monitoring

The Rheem-Ruud 42-101225-81 Pressure Switch is a critical safety component designed for precise furnace draft monitoring and combustion blower verification

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