Air Vent Automatic Foundation Vent 17-1/2" X 8-1/2" X 6" 50 Sq. In. Net Free Area Black

Description

Quantity of 10: Air Vent # RABL Black Automatic Foundation Vents, Features A Bi-Metal Coil To Open & Close Automatically, At A Temperature Of 70 Degrees The Vent Opens To Provide Fresh Intake Air, At 40 Degrees The Vent Closes To Conserve Energy & Protect Pipes From Freezing