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Estink Automatic Window Opener,Solar Heat Sensitive Greenhouse Autovent Vent Opener Standard-Lifts 15 Lbs

Amazon.com Price: $20.29 (as of 12/11/2019 19:10 PST- Details) & FREE Shipping.

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Greenhouse Window Opener Kit:
Maximum window opening 45cm
Maximum opening about 30 degree, depending on adjustment and load
Maximum opening weight 7kg/15lb
Adjustable open temperature range 15degree- 25degree/60degree- 77F

Replacement Greenhouse Window Opener Cylinder:
Maximum opening weight 7kg/15lb
Adjustable length 33-45cm
This products need to be refrigerated before using.

Package includes:
1 x Window Opener Kit

Non Electric, uses solar energy, open or close the greenhouse vents as temperature rises or drops.
Can be clamped onto or screwed onto your greenhouse frame; Please ensure your greenhouse window can be opened freely by at least 45cm (18″).Do not apply excessive loads by locking or covering window
Ideal for your greenhouse window–opens and closes your greenhouse window.
as the temperature changes automatically, maintains the best growing temperature and prevents your greenhouse from overheating.
Important notice:Do not use this opener anywhere the temperature will exceed 50¡ã (122F)

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