Automatic Louver Window Opener for GrandioDESCRIPTION The Grandio Automatic Louver Window Opener adjusts airflow based on temperature changes. This opener features a metal cylinder with an expanding mineral that pushes a piston to open the vent when heated. As it cools, a spring closes the vent. Attach it to the left side of your louver window for optimal cooling. Please call to order a Right Side Orientation Auto Opener for Louver Windows purchased prior to September 1, 2016.

This German product is constructed of sturdy recycled plastic molded with a beautiful wooden texture

this gazebo is easy to assemble and maintenance-free

double-tiered bench frame sits in the center of the greenhouse structure with ample growing area

Door Features: Low threshold ramp for easy access

Low threshold entry

This model also comes with Planta Greenhouse Automatic Window Package

Constructed from solid fir wood (which is rot resistant)

All Aluminum frame

The classic

with no slugs or snails

62 sq feet growing space and 6

3 adjustable roof vent