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Specifications

Active Ingredient75–85% Manganese Dioxide
Target ContaminantsIron, hydrogen sulfide, manganese
Screen Size12 x 40
Bulk Density114 lbs/cu.ft.
Service Flow6 gpm/cu.ft.
Backwash Rate16–30 GPM/sq.ft (min. bed expansion 15%)
Bed Depth20 inch minimum
Freeboard30–50% of bed depth
pH Range6.5 – 9.0
Removal CapacityIron 10 ppm · Hydrogen Sulfide 3 ppm · Manganese 5 ppm
CertificationCertified to ANSI/NSF Std. 61
Packaging (A8033)0.5 cu ft / bag · 57 lbs · 38 per pallet

The use of additional oxidizing agents (oxygen, chlorine, ozone, hydrogen peroxide, potassium permanganate) is recommended to enhance performance. Do not exceed 4 ppm free chlorine in the feed water. Watts recommends a small-scale pilot test anytime the use of oxidizing agents is in question.