A perfect companion for your exhaust fan Eliminate the hassle of manually opening and closing vents. Motorized Intakes are wired to Exhaust Fans and open automatically when the fan turns on to ventilate your greenhouse. Intake shutters close securely when not in use to make an effective seal against the outside air.
- Constructed of white exterior grade PVC.
- Aerodynamic efficient design.
- Corners are heat fused together for strength and durability.
- Nylon bearings will not corrode-never need lubrication.
