Sigma Extension Exhaust Shutter featuring a rounded design and

featuring a rounded design and creative construction that brings heavy-duty greenhouse engineering into your own backyard

helping you maintain the comfortable environment necessary for healthy plants in Sungrow

this thermostat can be wired for either heating or cooling applications

Its robust design makes it one of the highest-valued shutter options currently available for agricultural and industrial settings

Built to withstand harsh conditions

Sigma Extension Exhaust Shutter featuring a rounded design andLength 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