Sub-Zero 4204490 Refrigerator Water Filter Replacement 9030868 - 3 Pack

Stock up on replacement filtration cartridges with the Sub-Zero 4204490 Refrigerator Water Filter 3-Pack. This three-filter set is suited to Sub-Zero owners who prefer to keep replacement cartridges on hand for future maintenance. Each 4204490 filter uses a twist-in design for compatible refrigerators and helps reduce chlorine taste and odor while filtering particulates and other contaminants identified in the manufacturer's performance data. With a rated capacity of up to 750 gallons per cartridge and a service life of up to 12 months per filter, this three-pack offers a convenient way to plan ahead for successive replacements. It is designed for compatible Classic, Designer, and PRO series refrigeration systems, but some older models require a different filter style. Verify your refrigerator's model and serial number before placing your order.

Product Details

• Manufacturer: Sub-Zero
• Product Type: Refrigerator Water Filter 3-Pack
• Filter Part Number: 4204490
• Quantity: 3 water filter cartridges
• Filter Design: Twist-in replacement cartridge
• Rated Capacity: Up to 750 gallons per cartridge
• Service Life: Up to 12 months per cartridge, depending on usage and water conditions
• Service Flow Rate: 0.78 GPM
• Operating Pressure: 35–120 PSI
• Water Temperature: 33°F–100°F
• Interchangeable Part Number: 9030868

Special Features

Stock Up on Three Replacement Cartridges

This Sub-Zero 4204490 three-pack includes three water filter cartridges in one order. It can help you plan ahead for future replacements and keep a spare available when the installed filter reaches its service limit.

Designed for Compatible Sub-Zero Refrigerators

The 4204490 is a manufacturer-specified twist-in water filter for compatible Classic, Designer, and PRO series refrigerators. Confirm the original part number before buying, especially if your refrigerator is an older Classic BI model.

Helps Reduce Chlorine Taste and Odor

The filter is designed to reduce chlorine taste and odor and filter particulates from water. The manufacturer's performance documentation also specifies reductions for certain additional contaminants under tested conditions.

Documented Filtration Standards

Sub-Zero's performance documentation identifies testing and certification against NSF/ANSI Standards 42 and 53 for the listed filtration claims. These standards relate to specified reductions, not the removal of every possible contaminant. Consult the performance sheet for the complete list and testing details.

Replacement Planning for Multiple Filter Changes

Each cartridge is rated for up to 750 gallons or up to 12 months of service. The three filters are separate replacement cartridges; the pack does not mean one cartridge lasts three years. Replace each filter according to actual use, the refrigerator's indicator, and the manufacturer's instructions.

Compatible Refrigerator Series

The Sub-Zero 4204490 replacement filter is listed for compatible models in the following families:

• Classic Series: BI and CL

• Designer Series: IT, IC, DEC, and DET

• PRO Series: 648PRO, PRO3650, and PRO4850

Replacement Part Number: 4204490
Interchangeable Part Number: 9030868

Compatibility Warning: Not every Sub-Zero refrigerator uses the same filter. Some older Classic BI models use a push-in cartridge rather than the 4204490 twist-in design. Check your refrigerator's model and serial number or use the official Sub-Zero filter finder before purchasing.

Filter Replacement Instructions

1. Identify the correct filter using your appliance's model information or existing cartridge label.
2. Remove the old filter following the instructions for your refrigerator.
3. Insert the new 4204490 cartridge into the designated filter housing and secure it as directed.
4. Flush the water system according to the manufacturer's instructions.
5. Monitor the filter indicator and water flow, and replace the cartridge when required.