Witten 306MWH Replacement Auto Foundation Vent, White Winter_Items Not only does this hat

Not only does this hat keep you protected from the sun

Length : 20"

Open size: 48” Diameter x 29-1/4” H

Do not apply if there is a chance of rain within 24 hours

40 amp rapid charge – charges in 1/2 to 1 hour

Witten 306MWH Replacement Auto Foundation Vent, White Winter_Items Not only does this hatHighlights: Color: White Replaces old style manual vents Fits standard 8" x 16" vent openings Automatically opens at 70 degrees Fahrenheit and closes at 40 (approximately) The key mechanism, bi metal coil, fully enclosed in protective cover Stainless steel compression spring with 1 adjustable screw for easy installation 65 square inch net free area High density thermo plastic construction Stainless steel and corrosion resistant metal parts Heavy duty