Palram - Canopia | Automatic Roof Vent Opener for Palram - Canopia Greenhouses Raised Bed Vegetable Garden 3 year limited warranty

3 year limited warranty

Bio-degradable - when the time comes this unit can be recycled

Weight: 10 pounds

5x6 ft Vinyl Plastic Storage Shed with Foundation is maintenance-free

the Rubicon Shed is a standout for its robustness and durability

Palram - Canopia | Automatic Roof Vent Opener for Palram - Canopia Greenhouses Raised Bed Vegetable Garden 3 year limited warrantyThe Automatic Vent Opener was designed to automatically control the temperature in all Palram Canopia Greenhouses. As the air inside the greenhouse warms, the vent gradually opens to allow the correct amount of airflow into the greenhouse and closes when the optimal temperature is reached. The vent arm was designed with the use of natural wax that expands to push a piston, which raises the window, as the air gets warmer then contracts as it cools,