R604221-01 | Door Switch/Interlock Switch | Armstrong Furnace Product Type_Fan RG128 155C * **Regal Rexnord - Fasco

* **Regal Rexnord - Fasco Brand:** Backed by a trusted manufacturer known for quality and innovation

With a 4-micron filtration rating

The VMP42 valve body is compatible with a wide range of Siemens Building Technology products and systems

The precision engineering of the assembly ensures a proper fit and optimal performance within your unit heater

This motor is constructed with high-quality materials

R604221-01 | Door Switch/Interlock Switch | Armstrong Furnace Product Type_Fan RG128 155C * **Regal Rexnord - FascoArmstrong Furnace Door Switch Interlock Switch (R604221 01) This Armstrong Furnace Door Switch Interlock Switch (R604221 01) is an essential component designed to ensure safety and proper operation of your furnace system. Engineered to meet rigorous standards, it acts as a vital safeguard, preventing the furnace from operating when the access door is open. Specifically engineered for Armstrong furnaces, this switch features a durable construction that