High Tunnel Auto-Open Greenhouse Vent

Keep your high tunnel greenhouse, garage or shelter vented on the ends with these auto-opening vents. Vents automatically open and close based upon the interior temperature.  A bimetallic spring, which is heat sensitive, begins to open the vent at 74 degrees, fully opened at 104 degrees. When the interior temperature cools down, the vent begins to close up. NOTE: 2 vents per box are included.

Measurements: 14.13 inches wide x 14.13 inches high, 2.5 inches deep.

• A bimetallic spring, which is heat sensitive begins to open the vent at 74 degrees, fully opened at 104 degrees; and closes automatically when the inside temperature cools down.
• Reduces humidity and moisture buildup in your fabric garage or shelter
• Easy to install with 2-sided plastic pop rivets
• Fits with any fabric covered Instant Garage or storage shelter
• Vents are screened to keep out insects and debris