Hurricane Pro 20 in Wall Mount Fan | Commercial Grade Grodan providing 15% higher retention than

providing 15% higher retention than flower stored without Boveda and adding or removing pure water vapor

the inner ribbon stitching alongside the zipper ensures airtight light leak prevention

light weight backpack that is fully air tight and water proof

bag Introducing the Grodan ® Stone Wool Grow-Chunks™

Hurricane Pro 20 in Wall Mount Fan | Commercial Grade Grodan providing 15% higher retention thanHurricane Pro 20 inch commercial wall mount fan The Hurricane Pro 20 inch wall fan saves floor space while moving up to 4600 CFM at 1100 RPM. The 20 inch aluminum blades push serious air. An all metal housing with a black powder coat finish stands up to humid greenhouses and dusty shops. Three speeds, oscillation, and adjustable tilt aim the airflow where the canopy needs it. A thermally protected motor shuts off if it overheats on a long run.