Easy to slide open and close: The house crawlspace vent cover for fountdation is easy to push of a lever to open and close the damper based on the season, through close the damper in winter to help retain heat to reduce the possibility of freezing pipes, and open the damper in spring to allow great air flow circulation.
Foundation Vent Cover,Crawl Space Cover Fits 16”x8” Rough Opening, Black
Easy to slide open and close: The house crawlspace vent cover for fountdation is easy to push of a lever to open and close the damper based on the season, through close the damper in winter to help retain heat to reduce the possibility of freezing pipes, and open the damper in spring to allow great air flow circulation.