This crawl space vent cover mounts from inside the crawl space behind an opening. The covers keep air flow blocked from the outside. The large plastic plate is attached to the wall with screws and a drill or powder/gas/battery actuated nail gun.
Item is sold in a pack of five.
Assembled in USA from domestic and foreign parts. Includes 3-year limited product warranty.
Specification Sheet – ATMOX Vent Cover – Internal Mount – 5 pack