- Works great ,Easy to install and durable for RV,Camper and Home.
- Our High impact/weather proof materials will provide years of service.
- Damper automatically opens when range hood fan is on and closes when off.
- 5.3" x 11.5" Exterior Flange ; 3.5" x 10.3" Rough Opening ; Collar length: 1.8" ;
- The exhaust vent cover damper is lockable.Include 10 pcs screws.