❤It prevents your greenhouse from overheating.As the temperature changes automatically, it maintains the best growing temperature and prevents your greenhouse from overheating.
❤Raise or lower the temperature setting with a simple twist of the cylinder and the it can be adjusted from approximately 65 to 80 degrees Fahrenheit.
❤No electrical power is required as the fluid-filled cylinders expand in top temperatures.Screw directly into polycarbonate panels, wood, or metal frames.
❤Automatic window opener opens and closes your greenhouse vent panels.Put the cylinder in a cool place at max. 50°F for at least 30 minutes before the assembly.
