Tjernlund 18 in. x 4 in. x 11 in. Moisture Mold Reducing UnderAire

The Tjernlund UnderAire Series Crawl Space Ventilators are designed to circulate fresh outdoor air underneath homes and porches. Excessive humidity levels in Crawl Spaces is the leading cause of premature
The Tjernlund UnderAire Series Crawl Space Ventilators are 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 wood off-gassing and other odors that might migrate into living areas. The (V4D) is controlled by a dehumidistat which actuates the fan if the relative humidity rises above the selected set-point.

Tjernlund V2D Model UnderAire Crawl Space Fan Ventilator, Deluxe 2 Fan, 220 CFM and 950-8304 Underaire Steel Crawl Space Vent, Steel Diamond Pattern, 18 x 10 Screen bundle: : Industrial & Scientific

UnderAire™ Crawl Space Ventilation Fans : Dryer Boosting Fan : Tjernlund Products, Inc.

Tjernlund Crawl Space Ventilator - V1

Hampton bay Collier 11.12 in. 1-Light Black and Gray Wood Outdoor

NEW, Never Used- DC Solar Mobile Solar Generator Trailer with

Tjernlund Crawl Space Ventilator - V1