The W400 Wall Air Inlet is a versatile, all-season inlet that offers
air direction control through the use of its bottom deflector louver.
The W400 can be mounted to control airflow through a wall by framing in
an opening. The W400 inlet has a bottom deflector louver that is used
to direct airflow and, if desired, to shut off the inlet.
- Counterbalanced louver adjusts automatically to fan speed
- Bottom deflection louver is also used to shut off the inlet, giving it a virtually leak-proof seal
- PVC plastic is corrosion resistant and the smooth surface cleans easily
- 400 CFM at .08 SP
- 22 1/4" x 7 1/2"