Wiwir Solar Heat Sensitive Automatic Greenhouse Vent Opener Auto Vent Kit for all Palram Greenhouses (Single Spring Vent Opener)

Price: $24.69
Product prices and availability are accurate as of 2021-12-03 06:23:22 UTC and are subject to change. Any price and availability information displayed on https://www.amazon.com/ at the time of purchase will apply to the purchase of this product.
In Stock.

Product Features

Suitable for Most Greenhouses--This opener will automatically open and shut your greenhouse window to maintain the best growing temperature and preventing your greenhouse from overheating. Quality Construction--Reliable, quality built anodised aluminium automatic window opener for greenhouses. Working Conditions--Start to open - 15°c - 25°c (60°-77F); Fully open temperature 35° (19f) or above; Fully open distance 45cm (18") Environmental friendly--Non Electric, uses solar energy, open or close the greenhouse vents as temperature rises or drops Important notice: Do not use this opener anywhere the temperature will exceed 45° (122F). To use with the palram greenhouse, you need to use the drilling tools to screw into the channel and fix it.