Duct Carbon Filter 4 - Charcoal Carbon Filter for 4" Duct Fan spl_bfg or from Hydrofarm reflectors to

or from Hydrofarm reflectors to other brands of ballasts

It’s a Plain Jane™ mix that contains a proprietary blend of low salt fiber and pith for superior aeration and optimal water retention

that allows cells to grow and reproduce

4 lbs total)

Duct Carbon Filter 4 - Charcoal Carbon Filter for 4" Duct Fan spl_bfg or from Hydrofarm reflectors toDesigned to eliminate odors and chemicals for grow tents and hydroponics room. Features premium grade Australian charcoal with higher adsorption and longer life rating. Contains heavy duty aluminum flanges, galvanized steel meshing, and clothed pre filter. Enables maximum airflow passthrough for both intake and exhaust configurations. Duct Opening: 4 Length: 13" Airflow Rating: 210 CFM Carbon: Australian RC412 at 1200+ IAV Thickness: 38mm PRODUCT