Recessed Crawl Space Vent Cover vs Foundation Vent Covers

Buy the Recessed Crawl Space Vent Cover if you are sealing a standard 8" x 16" foundation opening as part of an encapsulation or conditioning job. Its rigid ABS body mounts from inside, sits flush in a 1¼" recess, and gives a permanent, finished seal that owners rate 5 out of 5. The Foundation Vent Covers are R-10 foam board inserts that block debris and animals and add some insulation, but they do not attach on their own and need trimming and spray foam to work. Choose the foam set for cheap insulation and pest blocking; choose the recessed cover for a real air seal.

• Choose the Recessed Crawl Space Vent Cover if your opening is a standard 8" x 16" and you want a rigid, permanent seal that installs from inside the crawl space.
• Choose the Foundation Vent Covers if you want to insulate and block debris at several vents with pre-cut R-10 foam pieces you can trim and spray-foam in place.