Temp Vent Automatic Foundation Vents

The non-powered, Automatic Foundation Vent will open and close automatically using a heat/cold sensitive coil. The louvers open completely at approximately 72°F and completely close at approximately 38°F. Unlike manual vents that can waste energy when no one remembers to open or close them, these vents self-adjust all year long. Check out the color choices at Pest Control Products online store.