Sigma Extension Hydroponics it delivers commercial-grade performance in

it delivers commercial-grade performance in a design that remains practical and accessible for home gardeners

Please note: this window only fits the Sungrow Greenhouse models

The Planta Sigma Urban (Gen III) was created for spirited gardeners working with compact urban and suburban spaces

Sungrow 26 (10x26): 6 windows

Thickness is 8mm

Sigma Extension Hydroponics it delivers commercial-grade performance inLength Extension of 6. 5 ft. for Planta Urban and Planta Sigma models. This product comes strictly as the extension for the Planta Sigma and Planta Urban models. Splitter doors and manual windows are not included BASELINE MODEL