In alibaba china greenhouse Automatic window opener HX-T312  

Detail Description:

1.Fully automatic greenhouse ventilation

2.Heat activated

3.Can be adjusted to open at temperatures in the range 15-25 °C(60-77°F)

4.Maxium opening at 30-38C,depending on adjustment and load.Do not heat to more than 50°C

5.Maximum window opening is about 45cm

6.Suitable for greenhouse window up to 7kg(if more than 7kg,you may use two window opener)

7.Easy fitting by clamps or screws provided

8.No batteries or electricity required

 Features: 

 9. Replacement cylinders are available.

Quality assurance - All parts guaranteed for 1 year

Single spring type: HX-T312-1

Sunrooms:

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