AC Infinity RAXIAL Inline Booster Duct Fans with Speed Controller

BOOSTER DUCT FANS WITH SPEED CONTROLLERAdded Ventilation for Grow Tents and Rooms AC Infinity RAXIAL Series Inline Booster Duct Fans were designed to improve airflow in heating and air conditioning applications as well increase ventilation of grow tents and grow rooms. Each fan uses an easy-to-use knob controller that adjusts fan speed for your specific airflow boosting needs.  Use as an intake fan to bring in fresh air or installed in-between ducting for various applications that need improved air delivery such as long ducting runs. These booster fans cannot be used standalone for room ventilation or with restricted airflow systems that use carbon filters. The matte black steel unibody framework and permanently lubricated dual-ball bearings helps reduce vibration, ensures smooth airflow, and eliminates regular maintenance. The included speed controller adjusts the fan speed in LOW/MID/HIGH thresholds to easily optimize airflow strength and noise level. Kit includes: one AC powered bo