Hydro Crunch 4 in. x 12 in. Carbon Charcoal Air Filter with Flange 190 CFM Exhaust subcategory-trellis-systems What the pros use

What the pros use

Available in hard collars

This innovative formula features a proprietary blend of powerful enzymes

and diversely chelated forms of iron to prevent nutrient leaching from the grow medium

aluminum top and bottom

Hydro Crunch 4 in. x 12 in. Carbon Charcoal Air Filter with Flange 190 CFM Exhaust subcategory-trellis-systems What the pros useHydro Crunch 4 in. Charcoal Carbon Air Filters remove odors safely and naturally. The virgin activated carbon is the key ingredient for removing all odors organic or chemical smoke, plant, pet and cooking odors are all absorbed, trapped and held in the highly activated virgin carbon and the pre filter will catch any dirt or debris allowing the carbon to do its real job. To use attach to a fan for exhausting and you have an instant neutralizing odor