Palram - Canopia | Automatic Louvered Window Opener for Nature Series (Mythos, Hybrid, Essence), Americana greenhouses Greenhouse Grow Box Each panel set includes a

Each panel set includes a zipper

interior overheating

6 mm twin-wall polycarbonate roof panels – virtually unbreakable

Easy to maneuver

Rot or Mildew

Palram - Canopia | Automatic Louvered Window Opener for Nature Series (Mythos, Hybrid, Essence), Americana greenhouses Greenhouse Grow Box Each panel set includes aThe Automatic Louvered Window Opener is designed to automatically control the temperature and provide additional ventilation 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 minerals that expand with heat to push a piston, which raises the