Sub-Zero Refrigerator Water & Air Filter Replacement Kit
Two genuine Sub-Zero filters featuring advanced water filtration and NASA-developed air purification technology.
BI-30U, BI-30UG, BI-36S, BI-36U, BI-36UFD, BI-36UID +38 more View all 44 compatible models Show fewer compatible models
BI-30U, BI-30UG, BI-36S, BI-36U, BI-36UFD, BI-36UID, BI-36UG, BI-42S, BI-42SD, BI-42UFD, BI-48S, BI-48SD, BI-48SID, CL3050U, CL3050UID, CL3050UG, CL3650U, CL3650UID, CL3650UG, CL3650UFD, CL3650UFDID, CL4250S, CL4250SID, CL4250SD, CL4250UFD, CL4250UFDID, CL4850S, CL4850SID, CL4850SD, IC-24CI, IC-30RID, IT-30CI, IT-30CIID, IT-30RID, IT-36RID, DET3050CI, DET3050CIID, DET3050RID, DET3650CI, DET3650CIID, DEC3050RID, PRO3650, PRO4850, and PRO4850GEvery order is manually reviewed by our parts experts before processing. If you provide your model or serial number and we ship the wrong part, we’ll cover the return or exchange, including a prepaid return label.
Part Description
Keep your Sub-Zero refrigerator's water and air filtration systems performing as designed with this two-filter replacement set.
The authentic Sub-Zero water filter is engineered for a precise fit and advanced filtration performance, reducing chlorine taste and odor, lead, mercury, and other impurities for cleaner, fresher-tasting drinking water and ice.
The authentic Sub-Zero air purification cartridge uses NASA-developed technology to help reduce ethylene gas, odors, and airborne bacteria, with the refrigerator's air purification system treating the air every 20 minutes.
Both replacement components are supplied together for convenient routine refrigerator maintenance.
Part details
Sub-Zero's water and air filtration systems serve two different purposes, and both require periodic filter replacement.
The water filter helps remove specified impurities from the water used for drinking and ice production, while the air purification cartridge helps maintain a cleaner refrigerator environment by reducing odors and ethylene gas.
Replacing both filters when due helps maintain proper filtration performance and supports the refrigerator's food preservation features. This convenient two-filter set provides both genuine replacement components in one order.
Specifications / Important Notes:
- Includes one genuine Sub-Zero refrigerator water filter
- Includes one genuine Sub-Zero air purification cartridge
- Total quantity: 2 replacement filters
- Water filter: One-prong, twist-in design
- Water filtration certified to NSF/ANSI Standards 42 and 53 for specified contaminant reduction
- Water filter replacement: Up to 12 months or when indicated
- Air purification cartridge: Approximately 12-month service life
- Air purification system treats refrigerator air every 20 minutes
- Compatible with Sub-Zero Classic, Designer, and PRO refrigerators equipped with both filtration systems
Tech Tip:
Air filter rattling and minor white manufacturing residue are normal. Remember to reset each filter indicator after installation. To reset the flashing "PURE AIR" indicator, press and hold the "PURE AIR" button for 5 seconds.
Product Note:
Expert Appliance Pro supplies genuine Sub-Zero water and air filters, not aftermarket look-alikes, together as our technician-recommended replacement set.