Palram Automatic Roof Vent Opener for Palram - Canopia Greenhouses Metallic 2ft x 2ft roof vent

2ft x 2ft roof vent with automatic opener Integrated dual rain water gutter system

48Class: 125Sub: 5SHIPPING FROM CITY

Filled with soil this base kit provides a solid foundation that improves stability and durability against strong winds

seedlings to large plants and even small trees can easily be grown

Allow for a FULL weekend to Fully Assemble (ground prep included)

Palram Automatic Roof Vent Opener for Palram - Canopia Greenhouses Metallic 2ft x 2ft roof ventThe 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 air flow into the greenhouse and closes when the optimal temperature is reached. The vent arm was designed with the use of natural wax that expand to push a piston, which raises the window, as the air gets warmer then contracts as it cools,