Granular / Black / Must not be used on waters with a pH <6.8 / Must be regenerated with potassium permanganate on a regular basis / Max iron & manganese level 10ppm/ Max H2S level 3ppm / Estimated life about 8-10 years

Handles: Sediment
               Iron (clear & red)
               Manganese (clear & red)
               Hydrogen Sulfide

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