Crawl Space Vent Cover Outward Mounted 10" x 18" by Crawl Space Door Systems works as a foundation opening cover, to help encapsulate or condition crawlspace areas. Crawl Space Vent Cover Outward Mounted 10" x 18" comes with 10" x 18" dimensions, come in black color, and come at one vent cover each.
Application: vent cover.
Use on: crawlspace areas.