Say goodbye to manual vent fiddling with this 8" x 16" Automatic Foundation Vent! Designed to slide perfectly into standard vent openings, it swings open around 70°F and shuts tight near 40°F—no electricity needed. Keep your crawl space airy while saving energy and dodging frozen pipes. With 57 square inches of ventilation, it helps protect your foundation from decay. Built tough with stainless steel springs, adjustable screws, and corrosion-free materials, this vent is a smart, durable upgrade that’s easy to install and easy on your wallet! Comes as a convenient 2-pack for double the fun.
