110 CFM Power Crawl Space Fan Crushed Stone 04 Manufacturer Warranty 1-Year Warranty

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while the embossed finish adds a touch of realism with its textures and details of real aged wood

This product will prevent mosquitoes from breeding in your gutters

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110 CFM Power Crawl Space Fan Crushed Stone 04 Manufacturer Warranty 1-Year WarrantyThe Tjernlund UnderAire Series V1 Crawl Space Ventilator is designed to circulate fresh outdoor air underneath homes and 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 also cause plumbing failures due to rust and corrosion. Constant operation helps vent radon gases, treated