30'x96' Greenhouse Frame Semi-Gable controller so that the air stream

so that the air stream from each heater “wipes” the wall to produce a blanket of warm air along the outside walls

Uniformity and intensity can be fine-tuned by adjusting the built-in dimming knob

such as high/low history

Comes in packages of 10 piece

J&D Manufacturing's Aluminum Intake Shutters are constructed with a heavy-duty aluminum extrusion frame and strong welded corners

30'x96' Greenhouse Frame Semi-Gable controller so that the air streamThe 30'x96' greenhouse frame is a great option that gives you a large greenhouse space that is also sized to fit standard greenhouse plastic sizes! Grow more while paying less for your greenhouse covering with this spacious model. 30'x96' Quonset greenhouse frames are also known as high tunnel greenhouses. The Quonset frame type has a lower peak height making it more efficient and economical to heat. The Quonset frame types are the least visually