Recessed Crawl Space Vent Cover - Shallow Depth Encapsulation Seal
4.8Best price now
$12.00at Crawl Space Door SystemsObserved at 3:03 PM
Compared across 3 stores. Prices are checked against each store and labelled with when.
Compared across 3 stores. Prices are checked against each store and labelled with when.
It checks today's price at every store, compares the alternatives and answers in about a minute.
This is a plastic vent cover that seals a standard 8 x 16 inch foundation opening from inside the crawl space, made for encapsulation and conditioned-crawlspace projects. Its shallow 1-1/4 inch inside depth suits thin foundation walls and block construction, and it replaces open or automatic vents to stop outdoor air infiltration. It is non-opening, so it is a permanent seal rather than a working vent. At $29.99 at Amazon as of November 4, 2026, it is the lowest of the three new prices we track.
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Lowest price we've seen: $12.00 on Nov 4 at Crawl Space Door Systems. Tracked across 3 stores since Nov 4.
Ratings are strong at 4.8 out of 5, though they come from only 12 buyers. Owners use it to close off foundation vents during encapsulation.
The shallow depth recessed crawl space vent cover installs flush into your foundation opening to create a clean, permanent seal for encapsulation or conditioning projects. With a ¼" recess depth, this cover is ideal for thin foundation walls or block construction, replacing standard 8" × 16" air vents or automatic vents while mounting from inside the crawl space to eliminate outdoor air infiltration.
Sizing Guidance
This recessed cover fits standard 8" × 16" foundation openings. If your opening is slightly larger, smaller, or irregular, consider our Outward Mounted Vent Cover which accommodates more size variation.
