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Designed to replace aging or failing HVAC pressure switches
The 5500-134M 120V control utilizes a heavy-duty rotary design with 8-32 UNC mounting threads for superior screw engagement compared to stamped alternatives
With an accuracy of ±1
or freezing condensate if the furnace is located in an unconditioned space
Williams 4318 Deflector 321042-401 Designed to replace aging orField technicians and HVAC contractors know that managing exhaust discharge is critical for system longevity and building safety. The Williams 4318 Vent Shield Deflector is a job site essential for high performance installations involving direct vent wall furnaces. This HVAC vent heat shield is engineered as an insulated galvanized metal sheet, specifically designed to mount externally between the exterior wall and the vent cap. Its primary function
