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Photo of 18 in. Greenhouse/High Tunnel Vent w/Auto Opener, Greenhouse Supplies


High Tunnel/Greenhouse 18 in. Vent w/Auto Opener


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SKU: 70145-00-00

Protect your plants from overheating!
This easy to install greenhouse vent can be placed in the roof or end wall to provide supplemental ventilation for extremely hot conditions. During moderate weather, high tunnels are generally vented by rolling up the sides and opening the doors on each end. However, extremely hot and humid weather often requires additional ventilation, and the best vent position is at the roof or peak of the structure.

The High Tunnel Vent is constructed of a rigid aluminum frame and shutters. Each vent comes with two types of vent openers: manual and auto-temperature. The manual opener is operated with a hand pull wire, while the auto-temperature opener operates automatically and can be adjusted to open at temperatures between 60-77° F. Vent acts as a great insurance policy in case you are unable to open your main vents or other venting fails.

Vent opening measures 16 -1/2" x 16 -1/2", total vent measures 23" x 23" x 3". Vent installs in minutes with wiggle wire and channel locking.



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The Harris Seeds company began its catalog operation in 1879. It evolved from the efforts of Joseph Harris who became extremely successful in the selection of superior strains of vegetables and grains. The company became wildly popular because of his basic business philosophy - "Offer my customers a quality product at a fair price and they will return."


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