Provides make-up (outside) air to help balance indoor vs. outdoor air pressure.
Sturdy open/close lever.
2 Position air delivery.
Washable air filter.
Bug screen.
Product Review
Product Description
Features: Brings outside air into your home to balance indoor vs. outdoor air pressure. Foam backing reduces outdoor noise and condensation. 3 inch diameter, 12 inch length through the wall sleeve. Stainless steel installation screws included. Durable ABS and PP resin body. Sturdy open/close lever. 2 position air delivery. Washable air filter. Bug screen.