4/5/6 Inch Exhaust Fan Home Silent Inline Pipe Duct Fan Bathroom Extractor Ventilation Kitchen Toilet Wall Air Cleaning ,Energy-Efficient

Portable and lightweight, easy to install Fluted on both ends to receive ducting Balanced metal blades are for boosting air supply and venting exhaust air Engineered for maximum boost with minimum noise Household applications: help to boost airflow in HVAC units to remove exhausts and odors from bathrooms and workshops and ventilate basements and attics, etc.