1.Fully adjustable window opener 2.Window opener used on greenhouse 3.Greenhouse ventilation-- window opener 4.Heat activated

1.Fully automatic greenhouse ventilation2.Heat activated3.Fully adjustable to open between 15-25 C (60-77 F)4.Suitable for opening the louvre automatically5.Easy fitting by clamps or screws provided6.No batteries or electricity required

Greenhouse automatic window vent opener accessary HX-T312