Active Aqua 4' X 8' Rolling Bench System Fan + Ducting Accessories The 75% RH level is

The 75% RH level is perfect for those who prefer a slightly moister environment

This patented technology either releases or absorbs moisture to maintain relative humidity at 72% in a contained environment

so no salt crystals settle onto the contents

Specification Value Type Inline duct fan (mixed-flow EC motor) Sizes 4 / 6 in Airflow (4") 165 CFM Airflow (6") 352 CFM Noise 29-34 dBA (by size) Voltage 100-240V AC Power 25-35W (by size) Controller 10-speed (included) Bearings Dual ball (67

Active Aqua 4' X 8' Rolling Bench System Fan + Ducting Accessories The 75% RH level isEliminate the need for multiple costly aisles on your grow room floor. These space saving benches allow you to roll your bench tops easily to create an aisle where you need it, when you need it. Active Aqua Hydrofarm's 4' x 8' rolling bench system is made of heavy duty galvanized steel and will maximize the grow space in your greenhouse or grow room. The benches are designed to accept flood tables, expanded metal, or wire mesh bench tops and come with