AC Infinity CLOUDLINE S4, Quiet Inline Duct Fan System with Speed Controller, 4-Inch Tents & Tarps A wholly original replenishable carbon

A wholly original replenishable carbon filter designed to permanently replace standard duct filters

Enhances Vegetative Growth: Promotes vigorous growth of leaves and stems

The result of months of scientific research and trials is Grodan Gro-Blocks Improved

• View data and current status remotely via Google Docs (a computer with permanent internet access is required)

AC Infinity CLOUDLINE S4, Quiet Inline Duct Fan System with Speed Controller, 4-Inch Tents & Tarps A wholly original replenishable carbonDescription Quiet Ventilation Design: Created to ventilate grow tents smoothly, transfer heating cooling to rooms, circulate fresh air and cool down AV closets. The fan operates at a quiet noise level with energy efficient performance minimizing heat and noise. Wired 10 Speed Fan Controller: Compatible with all UIS controllers boasting intelligent programming. The speed controller allows you to set the duct fan's speed to the optimal noise and airflow