2pcs Greenhouse Window Opener saving Adjustable Vent Opener

-Solar heat sensing greenhouse automatic window spring opener.

-Made of superior stainless 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.

-Enery-saving and eco-friendly, no eletricity needed.

Specification:

Material: Superior Stainless Steel

Size: Approx. 38x10x5cm / 14.96x3.94x1.97inch

Maximum window opening: 45 cm

Maximum opening: 30 ° depending on adjustment and load

-Single Spring Kit:

Max. opening weight load: 7 kg

Adjustable open temperature range: 20 ° -25 ° / 68 -77F

Package Includes:

2 Pieces Greenhouse Window Opener

Note:

Please do not use the opener where the temperature will exceed 50 ° (122F).