RERO Garden Greenhouse Temperature Control Single Spring Automatic Window Open Agricultural Vent Opener
$17.49
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SPECIFICATIONSgreenhouse: automatic greenhouse window openerType: Solar Agricultural GreenhousesOrigin: Mainland ChinaCover Material: Alloy Product Features: 1. Fully automatic greenhouse ventilation2.Heat activated3.Fully adjustable to open between 15-25 C (60-77 F)4.Open window fully to 350mm5.Suitable for windows up to 7kg6.Easy fitting by clamps or screws provided7. The manual of window opener 8.No batteries or electricity required9. With the automatic window openers, you can be sure of an even temperature in your greenhouse day and night.they allow thermostatic ventilation control through the roof windows of your greenhouse.10. Replacement cylinders are available.
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