J&D Manufacturing
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.
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