Hydro-Logic Tall Boy KDF85-Catalytic Carbon Upgrade Filter Power Boxes & Controllers the lid has alpha numeric

the lid has alpha numeric symbols formed directly into the plastic

- Come with sharp blade make clean quality cuts

square wave

It withstands heat

Potassium and secondary minerals necessary for the types of plants we grow to THRIVE during the all-important vegetative phase

Hydro-Logic Tall Boy KDF85-Catalytic Carbon Upgrade Filter Power Boxes & Controllers the lid has alpha numericKDF Catalytic Carbon Filters reduces 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 x 2. 5 inches. #741624 is 20 x 2. 5 inches. #741626 is 20 x 4. 5 inches.