Palram - Canopia | Automatic Roof Vent Opener for Palram - Canopia Greenhouses Raised Bed Vegetable Garden Bio-degradable - when the time

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

3 year limited warranty

These pumps are quiet

the Rubicon Shed is a standout for its robustness and durability

Looking for creative new ideas

Palram - Canopia | Automatic Roof Vent Opener for Palram - Canopia Greenhouses Raised Bed Vegetable Garden Bio-degradable - when the timeThe 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,