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Main image of 4 Inch Inline Duct Fan Kit with Speed Controller, Quiet DC-Motor Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics Comes with Base Cord Screw, Boat Blowers

Alt view image 2 of 7 - 4 Inch Inline Duct Fan Kit with Speed Controller, Quiet DC-Motor Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics Comes with Base Cord Screw, Boat Blowers

Alt view image 3 of 7 - 4 Inch Inline Duct Fan Kit with Speed Controller, Quiet DC-Motor Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics Comes with Base Cord Screw, Boat Blowers

Alt view image 4 of 7 - 4 Inch Inline Duct Fan Kit with Speed Controller, Quiet DC-Motor Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics Comes with Base Cord Screw, Boat Blowers

Alt view image 5 of 7 - 4 Inch Inline Duct Fan Kit with Speed Controller, Quiet DC-Motor Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics Comes with Base Cord Screw, Boat Blowers

Alt view image 6 of 7 - 4 Inch Inline Duct Fan Kit with Speed Controller, Quiet DC-Motor Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics Comes with Base Cord Screw, Boat Blowers

Alt view image 7 of 7 - 4 Inch Inline Duct Fan Kit with Speed Controller, Quiet DC-Motor Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics Comes with Base Cord Screw, Boat Blowers

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4 Inch Inline Duct Fan Kit with Speed Controller, Quiet DC-Motor Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics Comes with Base Cord Screw, Boat Blowers

[Stepless Speed Control Adjustable & Long Lifespan Inline Fan]This 4 inch inline duct fan delivers 53-183 CFM (95-145 m³/h) of powerful airflowperfect for quickly expelling bathroom moisture, grow tent, attic odors, and more. With a lifespan of >30,000 hours, this inline fan ensures stable, high-performance ventilation in 24/7 grow setups or busy households.
[100% Pure Copper DC Motor & High-Efficiency Airflow]Featuring a 100% pure copper DC motor, this inline duct fan spins at 1450-5000RPM with <20K temperature rise. Compared to aluminum motors, its 30% better heat dissipation and 50% lower energy use make this inline exhaust fan durable and reliable for heavy-duty needs.
[Low Noise & Durable ABS Material Duct Fan]Equipped with dynamic balance blades and IPX4 waterproof ABS housing, this duct fan resists impacts, corrosion, and deformation. At 24-45dB, its a quiet ventilation fan ideal for bedrooms, offices, or any space where peace matters.
[Easy Installation & Versatile Use Duct Fan]This 4 inch inline fan installs quickly on walls, windows, or ceilings. Perfect for bathrooms, grow tents, attics, garages, workshops,dog house,hen house,camping tent,laser engraving,and laundry rooms, it fits standard 4-inch ducts like a duct booster fan.

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One-Key Knob .Stepless speed Change 5000RPM Speed Air Volume 22dBLow Noise

22DB We use dual ball bearings to achieve true dynamicbalance,ensuring long-term quiet operation. Energy-efficient DC motors can reduceenergy consumption by more than 30% Air Volume 183CFM Speed 5000RPM