Sigma Ventilation Window recommendation and beginner-friendly

and beginner-friendly

"Bronze" or "Opal"

18kg / 7lbs

Tip: When paired with anti-dust tape

virtually unbreakable sheet

Sigma Ventilation Window recommendation and beginner-friendlyPlease note: this window only fits Sigma Greenhouse models. The Planta Sigma Ventilation Window is a fantastic add on for your Sigma Greenhouse. It will efficiently increase air circulation, maintaining a comfortable temperature, which is essential for healthy plant growth and disease control. The number of suggested windows is determined by the size of the greenhouse, the environment and growing zone in which you live, and the plants you would like