Resideo 4074EZB Air Flow Switch 321894-708 while the unit uses 5/32"

while the unit uses 5/32" barbed fittings

allows for precise airflow tuning across Carrier

The 5-foot capillary tube allows for flexible bulb placement to optimize evaporator efficiency

Built with a heavy-duty

Enhanced Safety: Features a built-in test button for verifying switch operation and circuit integrity during routine maintenance

Resideo 4074EZB Air Flow Switch 321894-708 while the unit uses 5/32"The Resideo 4074EZB Air Flow Switch bag assembly is a critical field replacement component for maintaining the operational integrity of Honeywell Home electronic air cleaners. Engineered for specific compatibility with F300E, F50F, and AFS series units, this differential pressure switch ensures the air cleaner only energizes when sufficient airflow is detected within the ductwork. This prevents ozone buildup and protects internal components from dry