Sigma Automatic Roof Vent Terra keeping your plants healthy and

keeping your plants healthy and disease-free

800 ft³ per hour

and the plants you would like to cultivate

The tall 8 ft roof height combined with the end-to-end ventilation ensure that your plants will thrive

Complete set

Sigma Automatic Roof Vent Terra keeping your plants healthy andPlease note: this window only fits Sigma Greenhouse models. Supercharge your Sigma Greenhouse with the Planta Sigma Automatic Ventilation Window. Improve air circulation by bringing in the fresh outside breeze, keeping your plants healthy and disease free. The automatic ventilation window is heat activated, which requires no electrical power or programming. This function ensures that hot air escapes during the day, preventing shrivelling or withering