Air Filtration Kit 6", Inline Fan with Speed Controller, Carbon Filter & Ducting Combo Apogee Instruments Inc. At 6" x 4" it

At 6" x 4" it lies flat across the top of a bin rather than eating into usable volume

and potassium (NPK)

Just add your own lighting

Wide compatibility: 1Pot

Air Filtration Kit 6", Inline Fan with Speed Controller, Carbon Filter & Ducting Combo Apogee Instruments Inc. At 6" x 4" itAC Infinity 6 inch air filtration kit with fan, filter, and ducting This 6 inch kit pairs a CLOUDLINE inline fan with a carbon filter and 25 feet of ducting for complete tent ventilation and odor control. The EC motor fan moves 352 CFM at just 34 dBA and runs off a 10 speed controller. A 38mm Australian RC412 carbon bed at 1200+ IAV scrubs odor as air passes through. Everything you need to build the fan filter duct loop comes in the box. Complete grow