Hydro-Logic Big Boy KDF85/Catalytic Carbon Upgrade Filter activators or catalysts to produce

activators or catalysts to produce accelerated growth

Give your crops what they need when they need it most with Emerald Harvest® Grow

and can be delivered in large batches or controlled point feedings

high humidity and excessive CFMs without any duct failure or fatigue

Hydro-Logic Big Boy KDF85/Catalytic Carbon Upgrade Filter activators or catalysts to produceKDF Catalytic Carbon Filters reduce iron, sulfur, chlorine, chloramines and heavy metals. Great for city or well water! Bacteriostatic qualities do not allow microbes to breed in filter. Doubles standard green carbon filter. #741622 is 10 in x 2. 5 in. #741624 is 20 in x 2. 5 in. #741626 is 20 in x 4. 5 in.