Inline Duct Fan 4 Inch, 205 CFM EC Motor, App Control

Inline duct fan boosts grow tent ventilation with precise airflow control to reduce heat, humidity, and stale-odor buildup in compact indoor spaces. The EC pure copper motor supports efficient, steady exhaust performance, while 10 speeds plus PWM and app control help you tune air exchange for indoor gardening and hydroponics. Wall-mountable and lightweight for quick installs where consistent circulation matters most.

• Delivers 205 CFM (349 m³/h) airflow to refresh air, manage heat, and support healthier plant environments


• Controls 0–10 speeds via PWM controller and smartphone app for fast, precise exhaust fan adjustment


• Monitors temperature and humidity with sensor-based automation and 4 auto modes for hands-off stability


• Runs quietly down to 27.1 dB at low speed (varies by speed) for overnight indoor use


• Includes inline duct fan only; ducts, connectors, and hanging straps sold separately

Built for growers who need reliable air exchange without constant manual tweaking, this ventilation fan helps maintain consistent conditions in grow tents, indoor gardens, and hydroponic setups. The EC motor is designed to limit excess heat buildup during extended runtimes and withstand demanding environments. Pair it with the correct 4-inch ducting and fittings to complete your exhaust setup and fine-tune circulation room by room. Grab yours today and keep your grow space moving clean, controlled air.

• Duct size: 101.6 mm (4 in)


• Airflow: 205 CFM (349 m³/h)


• Speed: up to 3000 RPM


• Air pressure: 350 Pa


• Power: 25 W


• Noise: as low as 27.1 dB at low speed (varies by speed)


• Dimensions: 12.01 x 8.27 x 7.28 in (30.5 x 21 x 18.5 cm)


• Net weight: 4.3 lb (1.95 kg)


• Motor: EC pure copper


• Mounting: wall-mountable