Sub-Zero 4204490 Refrigerator Water Filter – 3-Cartridge Replacement Pack

Stock up on replacement filtration cartridges with this Sub-Zero 4204490 water filter three-pack. Made for compatible Sub-Zero refrigerators, the 4204490 is a twist-in water filter designed to help reduce chlorine taste and odor, particulates, and additional contaminants covered by the manufacturer's certified performance data.

Specifications

• Brand: Sub-Zero
• Part Number: 4204490
• Pack Quantity: 3 water filter cartridges
• Filter Type: Refrigerator water filter
• Installation Style: Twist-in
• Interchangeable Part Number: 4290510, 9030868
• Rated Capacity: Up to 750 gallons per cartridge
• Replacement Interval: Up to 12 months per cartridge, or sooner when indicated
• Compatible Series: Select Classic, Designer, and PRO refrigerators

What Does the 4204490 Filter Reduce?

The Sub-Zero 4204490 system has been tested and certified by NSF International against NSF/ANSI Standard 42 for reduction of chlorine taste and odor and Particulate Class I, and NSF/ANSI Standard 53 for reduction of specified contaminants.

Check Your Refrigerator Before Buying

Sub-Zero 4204490 is used in compatible refrigerators from the following series:

• Classic BI and CL
• Designer IT, IC, DEC, and DET
• PRO 648PRO, PRO3650, and PRO4850

Part number cross-reference: 4290510, 9030868

Not every Sub-Zero refrigerator uses this cartridge. Some older Classic BI models require a different filter, including push-in designs. Confirm the part number printed on your current filter or consult Sub-Zero’s filter finder using the appliance serial number.

Replacement Schedule and Maintenance

Sub-Zero rates each 4204490 cartridge for up to 750 gallons (2,839 liters) or 12 months, whichever comes first. High-sediment water conditions may require more frequent replacement.

Replace the filter when the refrigerator's filter indicator signals a change, when water flow becomes noticeably low, or when other replacement signs described in your owner's manual appear.

After installing a new cartridge, follow the refrigerator's instructions to flush the system. For dispenser models, Sub-Zero recommends dispensing several glasses of water for approximately two minutes. For models without a water dispenser, discard the first two full containers of ice. Follow any model-specific instructions for resetting the filter indicator.