Ventilation Kit, 6'' Air Carbon Filter, 25' Ducting, 442 CFM Inline Fan With Controllers & Thermohygrometer, iPower Multi Flow They can also be combined

They can also be combined with soil for added aeration and increased moisture holding properties

while boosting chlorophyll levels

It also helps plants produce enzymes that give plants a higher capacity to make use of available CO2

for multipurpose use

Microfiber pouch and hard case included for proper cleaning and storage

Ventilation Kit, 6'' Air Carbon Filter, 25' Ducting, 442 CFM Inline Fan With Controllers & Thermohygrometer, iPower Multi Flow They can also be combinedIPower 6 Inch Air Carbon Filter 25 Feet Ducting 442 CFM Inline Fan Combo With Variable Speed Controller Rope Hanger And Humidity Monitor For Grow Tent Ventilation, Silver