AC Infinity Air Filter Box with High Efficacy Filter, 4 Inch harvest The smell-proof inner layer has

The smell-proof inner layer has heavy-duty carbon filter lining

or two separate grow tents

A variable speed controller designed to replace and upgrade existing wired speed controllers to remotely adjust your AC Infinity fan

High water holding capacity mitigates risk of salt build-up over multiple wet / dry cycles

A high-airflow shutter fan designed to remove stale air and ventilate greenhouses

AC Infinity Air Filter Box with High Efficacy Filter, 4 Inch harvest The smell-proof inner layer hasA duct filter box designed for use with inline fans to circulate fresh air and block contaminants. Built with 1mm thick cold rolled steel and aluminium duct flanges, able to withstand extreme weather. Slide lock door gives easy access to inner chamber while soft neoprene layer creates dust free seal. Includes a standard high efficacy filter that traps particles like dust, fumes, dander, and lint. 23. 46 x 8. 42 x 11. 73 Fits 4 Inline Fans 400 CFM