AC INFINITY RAXIAL S4, Inline Booster Duct Fan with Speed Controller, 4-Inch

AC Infinity RAXIAL S4 4-inch inline booster duct fan The RAXIAL S4 is a compact 4-inch inline booster fan that adds up to 106 CFM to a duct run. A die-cast unibody housing, balanced steel blades, and dual-ball bearings keep it smooth and quiet at 28 dBA. It draws just 15W at 0.15A on 110-120V. It plugs in on a 6-foot cord. An included speed controller dials the airflow up or down. Quiet 4-inch duct booster fan for grow tents Growers add it to a long or lightly restricted duct line to boost intake or transfer air from a primary fan or HVAC. The slim cylinder mounts horizontally or vertically in a tight tent. Dual-ball bearings rated to 67,000 hours keep maintenance low. Use it on open ducts, not directly on a carbon filter or high static-pressure setup. The speed control tunes airflow for seedlings, veg, or bloom. It runs quiet enough for a home grow. Key Features 106 CFM Booster: Adds airflow to intake or transfer duct runs. Quiet 28 dBA, 15W: Low-noise, low-power on 110-120V. Die-Cast Unibody: Balanced steel blades run smooth and low-vibration. Speed Controller Included: Dial airflow for each growth stage. Slim, Any-Direction Mount: Fits tight tents horizontally or vertically. 67,000-Hour Bearings: Dual-ball for long, low-maintenance life. Technical Specifications Specification Value Type Inline booster duct fan Duct Size 4 in Max Airflow 106 CFM Noise 28 dBA Voltage 110-120V AC Power 15 W Current 0.15 A Bearings Dual ball (67,000-hr L10) Housing Die-cast unibody Mounting Horizontal or vertical Best Use Open/lightly restricted ducts (not carbon filters) Controller Speed controller included