Witten 306MGR Grey Automatic Crawl Space Foundation Vent #Home & Graden#175
Witten Automatic Vent Color : gray Size : 8″ x 16″ Thermo-plastic With automatic damper 65 square inch net free area. No electrical hook-up required.
Replaces old-style manual vents. Fits standard 8″ x 16″ vent openings. High-density thermo-plastic construction. The key mechanism, bi-metal coil, fully enclosed in protective cover. Stainless steel compression spring with 1 adjustable screw for easy installation.
Automatically opens at 70 degrees fahrenheit and closes at 40 (approximately). Stainless steel and corrosion resistant metal parts. heavy-duty aluminum mesh screen, front and back.
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