4 Inch Inline Duct Fan Air Ventilator Metal Pipe Ventilation Exhaust Fan Mini Extractor Wall Fan with Aluminum Ducting
- Widely Used -- The 4inch inline duct fan is widely used in homes, offices, warehouses, restaurants, bars, shops, shopping malls, grow tents, greenhouses and other places where a lot of air is needed.
- Over-heat - The motor comes with low operating temperature and low heat generation, the built-in temperature device, the contact point is disconnected when the motor overheats, which acts as a power failure . double is safer.
- Large Airflow -- It is designed with sleeve motor, quiet and energy efficient, with rotational speed 2800 r/min, 140 CFM large airflow.
- DIY Your HVAC System - You can supply fresh air with one or more fans to DIY air circulation systems depending on the size of your space.
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