Use the cartridge reference to find your next replacement. This listing identifies the Sub-Zero 4204490 filter number, with multiple pack sizes available for a replacement now or spare cartridges for future changes.
Check your required filter
Compare the complete number on your installed cartridge with 4204490 and confirm the replacement specified in your refrigerator manual before ordering. Refrigerators from the same brand can use different filter systems, so the brand alone does not establish compatibility.
Select your pack size
Choose the quantity you need from the available pack options.
Review your selected pack size before adding to your cart.
Keep extra cartridges ready for later filter changes.
Installation and maintenance
Follow the instructions supplied with the cartridges and your refrigerator manual for installation, flushing and replacement intervals. Water conditions and household usage can affect replacement needs.
