Details Top-Notch Filter Material: 100% Sri Lanka selected coconut shell charcoal block, BPA free and food grade shell. Long-Lasting Service Life: 6 month or 300 gallon replacement for water filter, 3-6 month replacement for air filter. International Certification: Tested and certified by NSF/ANSI, IAPMO, ISO to provide you with the best water filters. Freshness of Foods: GF-7007067 Air Filter replacement cartridges scrub the air every 20 minutes to ensure freshness of foods. Best Value: Water and air filter cost-effective package to save your money. Compatible Refrigerator Models Sub-Zero 4204490, 4290510, 9030868, 7012975, PRO 48, 648PRO, 648PROG, PRO3650, PRO4850, BI-30U, BI-30U/S, BI-30UG, BI-36F, BI-36R, BI-36RG, BI-36S, BI-36U, BI-36UFD, BI-36UG, BI-42S, BI-42SD, BI-42SID, BI-42UFD, BI-48S, BI-48SD, BI-48SID, IC-18FI, IC-24CI, IC-24FI, IC-24R, IC-30FI, IC-30R, IC-36R, ID-24F, ID-24R, ID-27R, ID-30F, ID-36C, IT-30CI, IT-30FI, IT-30R, IT-36CI, IT-36R, IW-30CICompatible Air Filter Models:Sub-Zero 7007067,7042798 This filter is not sourced by or sponsored by Sub-Zero. The manufacturer’s name and part number have been used for reference purposes only. Shipping & Returns Free shipping on all US orders. 30 days easy returns. Learn more