Sigma Medium 20 (Gen III) Sigma Acc Manual or heat-activated ventilation windows

Manual or heat-activated ventilation windows for optimal air circulation

fruits and vegetables on a wall

A tambour for improved heat retention

It can withstand the most extreme climates

Sigma Medium 20 (Gen III) Sigma Acc Manual or heat-activated ventilation windowsThe Planta Sigma Medium 20 (Gen III) is an urban gardener's dream come true. The quality heat capturing materials allow for 3 or 4 season gardening, meaning you'll be able to harvest delicious fruits and vegetables beyond the outdoor growing season. Additionally, the rounded design is incredibly spacious, giving you the room to make the most out of your backyard garden. Exact size: 98. 4 x 89 x 237 inches Feel confident knowing that the rust resistant