Temperature Sensitive Automatic Window Opener Cylinder Greenhouse

Temperature Sensitive Automatic Window Opener Cylinder Greenhouse Description

100% New & High Quality Fully automatic greenhouse ventilation Easy fitting by clamps or screws provided No batteries or electricity required 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 of your greenhouse Material: aluminium alloy colour: black Package Contents: 1 x Window Opener Cylinder Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Fully automatic greenhouse ventilation No batteries or electricity required 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 of your greenhouse Easy fitting by clamps or screws provided & High Quality