Sigma Roof Vent Sigma 300 This model is constructed with

This model is constructed with a durable

the Everest 50 can be mounted on a foundation or embedded directly in the soil using foundational supports

Screw М4х8

26-metre) roof height

Sigma Roof Vent Sigma 300 This model is constructed withPlease 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