greenhouse automatic window opener

Specifications

greenhouse automatic window opener
1.Auto open and close adjusted by temperature
2.No Battery required

 Product Name : greenhouse automatic window opener

 

1. Fully automatic greenhouse ventilation
2.Heat activated
3.Fully adjustable to open between 15-25 C (60-77 F)
4.Suitable for windows up to 7kg( 15lbs  )
5.Easy fitting by clamps or screws provided
6.No batteries or electricity required

7. With two SS springs.  

8. 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 windows of your greenhouse.   

9. Replacement cylinders are available.

 

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