Description:

Made of quality material, durable, solid and convenient to use.
As the temperature changes automatically, maintains the best growing temperature and prevents your greenhouse from overheating.
Non-electric, uses solar energy, open or close the greenhouse vents as temperature rises or drops.
Great for your greenhouse window.
This products need to be refrigerated before use it.

Specification:

Replacement Greenhouse Window Opener Cylinder
Temperature range 15°- 25°/60°-77F
Maximum opening weight 7kg/15lb
Adjustable length 33-45cm
This products need to be refrigerated before use it.

Package Includes:

1 Piece Winder Opener Cylinder