<p><b>Inline Duct Fan 4 Inch Vent Booster, HVAC Exhaust Intake Fans 76 CFM, Ventilation Blower for Grow Tent Attic Kitchen Garage Greenhouse Basement (Φ 4 inch/110v)</b></p> <p></p> <p><b>Product specifications:</b></p> <p></p> <p>Name: 4 inch inline duct fan</p> <p>Rated voltage: 110V</p> <p>Rated power: 12W</p> <p>Rated frequency: 60Hz</p> <p>Speed: 2400 r / min</p> <p>Air volume: 76CFM / 130m³ / h</p> <p>Shell material: ABS</p> <p>Size: ø4" / ø100mm</p> <p>Bearing Type: Sleeve</p> <p></p> <p><b>Product Details</b></p> <p></p> <p>An inline duct fan designed to improve airflow in heating and air conditioning applications, and used for ventilation in places with poor airflow such as kitchen attic grow tent garage greenhouse.The seven-blade design uses aerodynamic principles to achieve low-resistance airflow, helping to reduce vibration and ensure smooth operation.This blower uses a permanently lubricated double ball bearing to rotate, which eliminates the trouble of regular maintenance and can be easily and safely installed between the pipes. The double ball bearing also allows the inline fan system to be installed horizontally or vertically.In addition, the fine design and high-quality materials make the service life of the duct fan more than 3 years.</p> <p></p> <p><b>Applications</b></p> <p></p> <p>The inline booster fan is used in various applications that require improved air delivery. In households, it boosts the air circulation of the HVAC system and remove stale air and odors. In grow tents, grow rooms, and indoor gardens, it is mainly used as an intake fan to bring in fresh air.</p>