Automatic Vent Opener Greenhouse Windows Opener Cylinder Durable Temperature Sensitive Single Spring Vent Opener - Black

Ingenious temperature-sensitive automatic vent opener can automatically open and close window frame, really works well in maintaining the greenhouse within the preferred temperature range. Vent opener starts opening between 15-25? (60-77?), depending on how you have adjusted the cylinder.

• Greenhouse windows opener can open and shut your greenhouse window automatically to maintain the best-growing temperature and prevents your greenhouse from overheating

• Single spring vent opener can be closed manually and easy to install, fit for most of aluminum frame greenhouse

• Temperature range is adjustable from 15-25? (60-77?) by turning the cylinder, maximum opening at about 30?/86? (depending on adjustment and load)

• Durable and rust-proof Iron windows opener with paint spraying for last long time use

• Use the Standard Vent Opener to lift up to 7kg / 15 lbs

Specifications:

• Material: Paint Spraying Iron

• Star open at?15-25? (60-77?)                                             

• Fully open at; 30?/86?                              

• Max open distance: 45cm/17.71inch

• Load-bearing: 7KG / 15lb

• Cylinder Length: 33.8cm / 13.3inch

Note:

• Do not heat to more than 50?(122?).

• Do not dismantle the cylinder.

• Do not apply excessive loads by locking or covering window.