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Stainless Steel Greenhouse Window Vent Opener, Heavy Duty Spring Strong Automatic Double Spring 15kg

<ul><li>Automatic Agricultural Windows Spring</li><li>Solar Heat Sensitive Vent Opener</li><li>Greenhouse Window</li></ul>

Assembled Product Dimensions (L x W x H)

Brand

Colour

Assembled Product Weight

Description:-Solar heat sensing greenhouse automatic window spring opener.-Made of steel, heavy-duty, Maximum opening Load: 7 kg / 15 kg-Working Principle: As the temperature changes automatically, thermal expansion and contraction, the black cylinder maintains the best growing temperature and prevents your greenhouse from overheating.-Solar powered, automatic open or close the greenhouse vents as temperature rises or drops.--saving and , no eletricity needed.Specification:Material: SteelSize: Approx. 38x10x5cm / 14.96x3.94x1.97inch Maximum window opening: 45 cmMaximum opening: depending on adjustment and load-Single Spring :Max. opening weight load: 7 kgAdjustable open temperature range: -25 degree / 68 --Double Spring :Max opening weight load: 15 kg Adjustable open temperature range: 15 degree -25 degree / 60 -Package Includes:1 Piece Greenhouse Window OpenerNote:Please use the opener where the temperature will exceed 50 degree (122F).Please remove the cylinder, the opener cannot be stopped by manual.

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Size

Single Spring load 7kg

Double Spring 15kg