Sub-Zero 4204490 Refrigerator Water Filter Replacement - 1 Pack

The Sub-Zero 4204490 refrigerator water filter is a twist-in cartridge designed for selected Sub-Zero refrigeration systems. It helps reduce chlorine taste and odour while filtering specified substances from the water supply. This single-filter pack provides a replacement for compatible refrigerators that use the 4204490 cartridge, including selected Classic, Designer and Professional models. Check your appliance model and existing filter number before ordering to confirm the correct fit.

Specifications

Key Features

• Chlorine Taste and Odour Reduction: Helps improve the taste and smell of water dispensed by compatible refrigerators.
• Specified Contaminant Filtration: Reduces certain substances listed in the manufacturer's performance data, in addition to filtering particulates.
• Twist-In Connection: Uses a one-prong cartridge design for compatible filter housings.
• Up to One Year of Service: Designed for replacement at least every 12 months, or sooner if the appliance's filter indicator or water flow calls for it.
• Alternative Part Compatibility: Interchangeable with filter part 9030868 in compatible systems.
• Single-Cartridge Supply: Includes one replacement filter for routine refrigerator maintenance.

Compatibility

• Compatible Brand: Sub-Zero.
• Compatible Part Number: 4204490.
• Interchangeable Part Number: 9030868.
• Compatible Refrigerator Series: Selected Classic (BI and CL), Designer (IT, IC, DEC and DET), and Professional models, including 648PRO, PRO3650 and PRO4850.
• Check Before Ordering: Some Classic BI refrigerators require a different filter based on their serial number and existing cartridge. Confirm the correct part using your appliance details before purchasing.

Contaminants It Reduces

The 4204490 is a refrigerator water filter, not an air purification cartridge. Sub-Zero states that its water filters help reduce chlorine taste and odour and filter particulates. Other reduction claims should be checked against the performance data for this specific model.

• Chlorine taste and odour: Helps improve the taste and smell of filtered water.
• Particulates: Filters particulate matter covered by the product's performance specifications.
• Other specified contaminants: Consult the manufacturer's 4204490 performance data sheet for the substances and reduction levels verified for this cartridge.

Filtration performance depends on the substance and testing conditions. Do not use the filter with microbiologically unsafe water unless adequate disinfection is provided.

Installation Instructions

1. Confirm that your refrigerator uses filter 4204490 or its listed interchangeable part.
2. Access the filter compartment according to your appliance manual. Its location varies by refrigerator series.
3. Twist the existing cartridge to release it, then pull it out.
4. Remove the protective packaging from the replacement filter.
5. Align the new cartridge with the filter housing and insert it using the manufacturer's specified twist-in method.
6. Check that the filter is seated securely.
7. Flush the filter according to the refrigerator's instructions before using the water or making ice.
8. Reset the water filter indicator if your appliance has one.