20" BB Anion Resin Filter for Tannin + Nitrate Reduction compatible with 10" BB Whole House Systems - Max Water, 104139

• For Tannins/Nitrates If you're on well water and/or your supply has a brownish discoloration that can't be remedied with a sediment or Iron/Manganese filter, an Anion filter could be the solution you're looking for. For water purification, wastewater treatment, and hydrometallurgy of tungsten, molybdenum extraction. Size 4.5" x 19 7/8" fits BB filter housings Customer Note: Max Water suggests using the "Anion" filter as a crucial intermediary between the "Sediment" and "CTO" filters. By incorporating a sediment filter prior to the Anion filter, it enhances the product's durability and extends its lifespan. Additionally, the CTO filter eliminates any unpleasant odors that may be present, caused by the release of alkyl-amines from the resin., Weight: 8.0 Pounds, Manufacturer: Max Water