Apollo Greenhouse Auto Window Vent

Reliable, quality built anodised aluminium automatic window opener for greenhouses.

* Clamps onto most aluminium greenhouse vents – no need for drilling.
* Can also be used for timber framed vents.
* Will fit a window weighing 12.5kgs (28lbs), exerting a load of 6.5kgs (14lbs).
* It is temperature adjustable and can be set to start opening the window.