$ 58.50
The AutoVent Automatic Greenhouse Vent Kit is an easily installed and inexpensive cooling solution for poly film and fabric structures or greenhouses. Featuring a heat-sensitive bimetallic spring, the vent automatically begins to open at 74°F and will be fully open by 104°F. Once the temperature starts to cool down, the spring will contract and the vent will begin to close. The Autovent Vent Kit has the Assembled Exterior Dimensions of 14.13″ x 14.13″ and will fit a Rough-In Opening of 12″ x 12″. Additional Features 2-sided plastic pop rivets. (2) Screened vents to keep out insects and debris. Easily installed.