VIVOSUN 4 Inch 203 CFM Inline Duct Ventilation Fan with Variable Speed Controller

Regular price $54.99

Only 308 items in stock!


  • POWERFUL AIRFLOW: Heavy hitting blower with a fan speed of 2500 RPM for an airflow of 203 CFM. Moves air through your target location efficiently for optimal ventilation.
  • RUNS SMOOTH AND QUIET: Powerful fan puts out only 49 dB noise level. Fine-tuned for minimum vibration with a sturdy vegan leather cover that further muffles any sound or vibration.
  • DURABLE BUILD: Galvanized steel parts come factory painted to resist atmospheric corrosion from humidity. Tight, precise construction eliminates rattling and reduces wear and tear to give the element a long life.
  • HIGH TECH DESIGN: The aerodynamically designed centrifugal impeller of this unit delivers strong airflow with a disproportionately low sound profile. Fitted with a variable speed controller and dual flanges for hassle-free hookup
  • VERSATILE APPLICATIONS: Ideal for cooling lighting fixtures or controlling hot and humid conditions in grow tents/rooms.

Tech Spec 

Size 4 Inch
CFM: 203
RPM: 2500
Power Supply: 120V
Power: 87W
Current: 0.62 Amps
Item Weight 8.33 pounds
Package Dimensions 12 x 10.4 x 10 inches
Noise level 49 DB
Finish Painted
Material Alloy Steel, Plastic


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vivosun quality

We are a team of international, highly-experienced professionals with expertise in growing equipment and its application with thousands of different types of plants that are guaranteed to help you live a happier, healthier life.