Recessed Crawl Space Vent Cover vs Elima-Draft Insulated Magnetic Vent Cover

These are not substitutes. The Recessed Crawl Space Vent Cover seals a foundation vent from inside the crawl space during encapsulation or conditioning work. The Elima-Draft Insulated Magnetic Vent Cover blocks a wall or ceiling HVAC register indoors to stop winter drafts. Buy the recessed cover for a crawl space project and the magnetic cover for a room register. On build, the recessed cover is a rigid plastic plate that nails to joists or replaces a block; the magnetic cover is thin ABS with adjustable magnets, and owners say it holds well on steel screws but needs a flat metal surface.

• Choose the Recessed Crawl Space Vent Cover if you are sealing 8 x 16 foundation vents from inside for encapsulation or a conditioned crawl space.
• Choose the INSULATED ALUMINUM VENT COVER if you want to block a wall or ceiling HVAC register in winter without tools and remove it in spring.