Sigma 39 (Gen III) Alpine Thickness is 16mm

Thickness is 16mm

Can you imagine growing up to 32 plants in less than a quarter square meter

Your Sungrow greenhouse upgrade kit brings a selection of useful new features to your 2019 greenhouse

It offers a structure that withstands the elements and adapts to the evolving needs of modern farming

Sigma 39 (Gen III) Alpine Thickness is 16mmTake backyard growing further with the Sigma 39 (Gen III). Built with heavy duty materials, this greenhouse supports 3 to 4 seasons of cultivation, giving you the opportunity for multiple harvests throughout the year. Its advanced engineering and durable construction bring the performance of a commercial greenhouse into a refined backyard structure. Exact size: 118. 1 x 83. 9 x 472. 4 inches The end to end airflow, spacious size, and high 7' ( 2. 13