SUB-ZERO WATER FILTER 4204490Details of Subzero Water Filter 4204490 Subzero Water Filter 4204490 is used in Built In Refrigerators, Integrated Refrigeration, and PRO refrigeration. To ensure clean crisp water, make sure to replace your Subzero sub zero 4204490 every six months. It is recommended to exclusively use authentic Sub Zero water filters for your Sub Zero Refrigerator in order to avoid potential damage to your unit. This particular Sub Zero Water Filter replacement is