Description
AIWFL 20 Inch Aluminum Automatic Gravity Shutter Louver Vent, 2 Pack Square Automatic Exhaust Shutter Louver Vent for Greenhouses, Garages, Attics, Workshops, Barn
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- 20 Inch Automatic Shutter Louver Vent: Package comes with 2 louver window shutters, the outer dimension of the shutter louver vent measures 22.44 "x22.44" x1.77", suitable for windows outside, home, garages and greenhouses
- Automatic Gravity Shutter: 2 pack automatic gravity shutter louver vent, easy to install and maintain. this aluminum shutter can automatically opens and closes with airflow, adapting to different ventilation needs
- Premium Quality Aluminum: Our gravity shutter louver vent is made of superior quality aluminum that it's strong and sturdy, will not rust or corrode
- Heavy Duty Shutters: automatic exhaust shutter louver vent can be fully closed to effectively block rain and dust, can withstand harsh weather conditions. Exhaust fan blades and motor are not included
- Wide Applications: This gravity shutter vent can circulate indoor and outdoor air and can also reduce or increase indoor temperature, great for use in attics, workshops, factories, warehouses, sheds, barns and greenhouses
