Sigma Ventilation Window recommendation "Bronze" or "Opal"

"Bronze" or "Opal"

Sigma 20 (10x19

Reliable and long-lasting with a 5-year warranty

8mm LEXAN™ THERMOCLEAR™ 15:

virtually unbreakable sheet

Sigma Ventilation Window recommendation "Bronze" or "Opal"Please 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