Set of 2 Witten Automatic Vent B-EBLACKMB"Energy-Saver" Foundation Auto Vent 8" X 16"- Black

Fits standard 8" x 16" vent openings With 18" lintel for new construction High density thermo-plastic construction Stainless steel and corrosion resistant metal parts Fits standard 8" x 16" vent openings With 18" lintel for new construction High density thermo-plastic construction Stainless steel and corrosion resistant metal parts