Williams 4318 Deflector 321042-401 precision-engineered to maintain optimal CFM

precision-engineered to maintain optimal CFM output and heat exchanger efficiency

This 1/3 HP blower motor features pre-loaded parameters for a plug-and-play installation in compatible AE series air handlers

Reliable Construction: Features permanently lubricated ball bearings for quiet operation and a long service life in demanding environments

Designed to replace aging or failing HVAC pressure switches

it features a 1-5/8 inch suction and 1-1/8 inch discharge with brazed connections to ensure a leak-proof hermetic seal

Williams 4318 Deflector 321042-401 precision-engineered to maintain optimal CFMField 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