Greenhouse Shutter Fan 20" With Cord, 1PH, 1/10HP, 115V, 1SP, Aluminum Shutter 16mm high-tension springs automatically pull the

high-tension springs automatically pull the interlocking louvers shut to create a superior weather seal

it is fully compatible with motorized shutter kits

As gardeners move into the warmer months

With the same durable aluminum frame and twin-wall polycarbonate glazing used across the Sigma line

the interlocking louvers provide a tight weather seal to protect your greenhouse interior from the elements when the ventilation system is not in use

Greenhouse Shutter Fan 20" With Cord, 1PH, 1/10HP, 115V, 1SP, Aluminum Shutter 16mm high-tension springs automatically pull the"No Electrician Needed" Installation This model is designed for maximum convenience, featuring a "plug and play" setup. It comes pre wired for 115V with a 3 prong plug and a 10' cord. Because the unit ships fully assembled out of the box, you can achieve professional grade ventilation immediately without the need for an electrician. Heavy Duty and Weather Resistant Constructed for longevity, the fan is housed in a heavy duty 18 gauge galvanized frame.