High Tunnel/Greenhouse 18" Vent w/Auto Opener
High Tunnel/Greenhouse 18" Vent w/Auto Opener
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 18 1/2" x 18 1/2", total vent measures 23" x 23" x 3". Vent installs in minutes with wiggle wire and channel locking (both included).
Shipping
We offer free standard shipping on orders above $250!
For orders below $250, shipping and handling charges will include outbound freight and packaging materials. Charges apply to all orders, and are based on the total order value before tax. Expedited services are also available at Checkout, and additional charges apply.
We are currently processing and shipping most orders within 1-3 business days of receipt (backorders not included), via USPS or UPS. Due to high demand during the peak months of January to May, orders may require additional time for packaging /shipment. Live plants are only shipped at certain times of the year and may be delayed due to poor weather conditions. Plugs & liners ship directly from our plug & liner grower specialists.
We do not ship on Saturday or Sunday. Orders placed Saturday to Sunday are considered received on Monday. We also do not ship during company-recognized holidays.
Currently, Harris Seeds only ships within the continental United States.