Resideo EARD8TZ Damper 321042-401 Precision Filtration: The 50 mesh

Precision Filtration: The 50 mesh screen provides the ideal balance between high flow rates and effective particle retention for 3/8-inch lines

Proper installation by a licensed contractor is recommended to verify output using a manometer

Standardized Mounting: Utilizes a 48 frame diameter and 1/2-inch shaft to integrate seamlessly with existing blower wheels and belly-band mounts

Common Questions Is the 4074EHG compatible with older FC37 series cells

Resideo EARD8TZ Damper 321042-401 Precision Filtration: The 50 meshThe Resideo EARD8TZ Damper is an essential 8 inch round fresh air damper engineered for tight seal ventilation and combustion makeup air applications. Featuring a 24V motor with a 2 wire configuration, this power open spring return assembly ensures failsafe operation, automatically closing during power loss to prevent unconditioned air infiltration. Constructed from galvanized steel, the single blade design high performance HVAC zone control by