4 Inch Inline Duct Fan 100mm Adjustable 310m3h Low Noise

Meet the 4 Inch Inline Duct Fan, a compact yet mighty 100mm adjustable duct fan built to move substantial air with minimal footprint. Delivering up to 275 m³/h (160 cfm) of airflow, its double nozzle blades maximize performance in tight spaces like grow tents, hydroponic setups, and confined ventilation runs.

Engineered for efficiency and reliability, this fan uses a brushless EC motor with variable speed control. It consumes only about 20 W at maximum speed, letting you dial in just the right balance between airflow and noise. Adjusting the speed not only optimizes performance but also helps you manage noise levels for a quieter indoor environment.

Designed for humid and smoky environments, the housing is plastic with an improved, moisture-tolerant construction (IP68). The blades are flame-retardant PBT, ensuring smooth and powerful rotation even at higher speeds. With a 100 mm duct connection and robust build, it performs well over long runs and can operate continuously 24/7 under demanding conditions.

Versatile applications include supply and exhaust ventilation, heat transfer, subfloor and roof ventilation, warehouses, and air circulation in tents or hydroponics setups. It connects to standard 100 mm ducts and can be installed over longer distances without sacrificing performance.

All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.

At intercyprus.com since 2002 — trusted for quality and reliability.

Benefits & Tips

• Adjustable airflow: Fine-tune speed to match your ventilation needs and keep noise levels down.
• Ideal for grow tents and hydroponics: Maintains fresh air exchange and prevents heat buildup for healthier plants.
• Durable for long-term use: Built for continuous operation and reliable performance in challenging environments.

Product specifications

• Duct Size: 100 mm
• Dimensions: 6.38 x 6.30 x 5.98 in
• Airflow: 275 m³/h (160 cfm)
• Noise Level: 56.8 dBA
• Bearing Type: Dual Ball
• Control Cable Length: 16 ft (5 m)
• Motor Type: Brushless EC motor
• Power Consumption: 20 W at max speed
• IP Rating: IP68
• Origin: Mainland China
• CE Certified: Yes

Package includes:

• 1 x 100 mm Inline Duct Fan

Warnings / Reminders

• Ensure power is disconnected before installation or servicing.
• Use with appropriate ducting and mounting hardware; avoid excessive duct length that exceeds performance limits.
• Do not immerse the fan in water; follow installation guidelines for safe operation.
• Keep away from children and ensure proper electrical connections following local regulations.
• For best results, consider a backflow prevention flap or deodorizing filter to minimize backdraft without significantly reducing suction.