JD Manufacturing Aluminum Power Intake Shutters are constructed with a heavy-duty aluminum extrusion frame and strong welded corners all at an affordable cost. Our aluminum greenhouse shutters are by far the best-valued shutter available on the market today. Power intake shutters are designed to bring fresh air into your greenhouse and may also be used for free-air exhaust. Options are available for multiple sizes and with or without cord. Features Available in sizes 24″-60″ High-efficiency shutter with tie bar to eliminate shutter flapping Nylon bearings and solid shafts for smooth performance Interlocking louvers for maximum weather seal
- Available in sizes 24″-60″
- High-efficiency shutter with tie bar to eliminate shutter flapping
- Nylon bearings and solid shafts for smooth performance
- Interlocking louvers for maximum weather seal