Hydro-Logic® KDF/Catalytic Carbon Upgrade Filters Size:Hydro-Logic Big Boy KDF85/Catalytic Carbon Upgrade Filter all-natural source of numerous essential

all-natural source of numerous essential elements and complex metabolic compounds

Clonex® Clone Solution is a clone-specific nutrient formulated using a special blend of minerals and other helpful ingredients

Rhizo Blast® is a powerful root developing tonic that boosts root growth

Install vertically or horizontally depending on your gardening application

Hydro-Logic® KDF/Catalytic Carbon Upgrade Filters Size:Hydro-Logic Big Boy KDF85/Catalytic Carbon Upgrade Filter all-natural source of numerous essentialKDF 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.