Aluminum Shutter - Motor Sold Separately (Carrier Shipping) Frame Only The shorter wavelength (435nm peak)

The shorter wavelength (435nm peak) + more blue spectrum helps suppress microbial growth and enhances terpene and THC production…

or between tiered shelves

Enabling complete control of your growing environment with timed on/off switching

Brushing all the leaves on a stalk at the same time is surprisingly efficient

Guide pipe swing arm assembly (71-GPSA)

Aluminum Shutter - Motor Sold Separately (Carrier Shipping) Frame Only The shorter wavelength (435nm peak)J&D Manufacturing's Aluminum Intake Shutters are constructed with a heavy duty aluminum extrusion frame and strong welded corners, all at an affordable cost. J&D aluminum shutters are by far the best valued shutter available on the market today. Intake shutters are designed to bring fresh air into your greenhouse and may also be used for free air exhaust. This product can be combined with a motor kit to open with power. Features Available in nearly