Palram - Canopia | Automatic Roof Vent Opener for Palram - Canopia Greenhouses and Sunrooms Anchor One set covers all sides

One set covers all sides of your Palermo 4300 Gazebo

now you don’t

2ft x 4ft x 5

- (2) automatic roof vent openers

Palram - Canopia | Automatic Roof Vent Opener for Palram - Canopia Greenhouses and Sunrooms Anchor One set covers all sidesThe Automatic Vent Opener was designed to automatically control the temperature in all Palram Canopia Greenhouses, and the Sun Room Six and Sun Room Eight. 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 as the air gets warmer, to push a piston which raises