• Replacement for 7007067 Air Purification Cartridge, can be combined use with 4204490 Refrigerator Water Filter.
• In order to get the freshest air, please change the filter every six months (to minimize odors).
• Advanced Replacement for 4204490 Water Filter: Extra grade coconut shell carbon block filter with 0.5mm micro hole size. The following claims have not been tested and certified by NSF. Go to NSF’s database, the manufacturer "Ningbo Pureza Technology, LLC" and model number "GF-ZERO".
• Compatible with Sub-Zero Refrigerator Water Filter: 4204490, 4290510, PRO 48, PRO 48 with glass door, BI-36F freezer, BI-36U up and down refrigerator/freezer, BI-48S side-by-side refrigerator/freezer, BI-48SD side-by-side Refrigerator/freezer, BI-36UG glass door refrigerator/freezer, BI-30U up and down refrigerator/freezer, BI-30UG glass door refrigerator/freezer, BI-42S side-by-side refrigerator/freezer, BI-42SD side-by-side refrigerator/freezer.
• Twist-lock design, leak-proof fit: The water filter replacement 4204490 features a twisted design for quick and easy filter change. Leakproof fit, free of tools.