the piston contracts and closes the vent

total height with base 11'10"

Louver windows help the ventilation of a greenhouse

Frame Material: Aluminum

The new 4x10x6 size offers an even larger 215 cu

Hoklartherm | Riga Black Greenhouse size:9ft 8in x 17ft 6in the piston contracts and closesThe Riga Black Greenhouse brings the proven strength of the German made Riga line into a more refined, architectural profile. With its black powder coated aluminum frame, elegant Victorian style roof cresting, clear front panels, and insulated twin wall polycarbonate body, it offers a strong balance of beauty, protection, and year round growing performance. This greenhouse is ideal for gardeners who want more than a basic backyard kit. The curved roof