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Your cart is empty. Description: The greenhouse vent opener maintains the best growing temperature and prevents your greenhouse from overheating as the temperature changes automatically, which is deal for your greenhouse window. Non-electric, adopted solar energy, open or close the greenhouse vents as temperature rises or drops. Made of quality material, durable, solid and convenient to use
Specifications:
Item Type: Greenhouse Winder Opener Cylinder
Temperature range 15¡ã- 25¡ã/60¡ã-77F
Weight: Approx. 107g
Package:
1 x Greenhouse Winder Opener Cylinder
Notes:
Do not use this opener cylinder anywhere the temperature will exceed 50¡ã (122F).
Do not dismantle the cylinder.
This products need to be refrigerated before use it.
Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.
Charles K
Reviewed in the United States on March 30, 2021
Doesn't work. The motion feels like a very sticky air spring when warm. When cooked in the refrigerator it doesn't collapse on it's on. When compressed while cold. It doesn't extend when warmed up.No instructions or any other documentation came with them.
Ski
Reviewed in the United States on May 15, 2020
Didn't work, even after I put it in the refrigerator as instructed.
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