18 in. x 9 in. Silver Galvanized Steel Crawl Space Fan Vent Polyester Brush textured surface for a comfortable

textured surface for a comfortable feel

modern farmhouse vibe

64 in Product Thickness (mm) 8 mm Product Weight (lb

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18 in. x 9 in. Silver Galvanized Steel Crawl Space Fan Vent Polyester Brush textured surface for a comfortableThe Tjernlund UnderAire Series V2D Crawl Space Ventilator fan is designed to circulate fresh outdoor air underneath homesand porches. Excessive humidity levels in Crawl Spaces is the leading cause of premature rotting of support columns,joists, floors and beam supports. Humidity can promote fungus growth and increased termite activity. Humidity may alsocause plumbing failures due to rust and corrosion. Constant operation helps vent radon gases,