White Automatic Foundation Vent

Automatically opens at 70ฐ F, closes at 40ฐ F. High density thermo-plastic construction with stainless steel and corrosion resistant metal parts. Heavy duty aluminum mesh screen in front and back. Fits 8″H x 16″L opening. 65 square inches of ventilation. Energy saver and helps control moisture build up under the home. Set screws included for installing on masonary foundation. Limited Lifetime Warranty – Made in the USA.