4204490 Sub-Zero Refrigerator Water Filter Replacement (1 Pack)

The Sub-Zero 4204490 water filter is a replacement refrigerator water filter designed for compatible Sub-Zero Classic, Designer, and PRO series refrigeration systems. This twist-in filter helps improve water quality by reducing chlorine taste and odor, filtering particulates, and reducing specified contaminants when used according to the manufacturer's instructions. With a rated capacity of up to 750 gallons and a recommended replacement interval of up to 12 months, the 4204490 refrigerator water filter helps maintain the performance of your compatible refrigerator's water filtration system. Check your refrigerator model and serial number before ordering to ensure the correct fit.

Product Details

• Brand: Sub-Zero
• Product Name: Refrigerator Water Filter
• Part Number: 4204490
• Product Type: Twist-in water filter cartridge
• Rated Capacity: Up to 750 gallons
• Recommended Filter Life: Up to 12 months, or sooner if indicated by the refrigerator
• Compatible Series: Classic (BI, CL), Designer (IT, IC, DEC, DET), and PRO (648PRO, PRO3650, PRO4850)
• Interchangeable Part Number: 9030868
• Service Flow Rate: 0.78 gallons per minute
• Operating Water Pressure: 35–120 PSI
• Water Temperature Range: 33°F–100°F

Key Features

Helps Improve Water Taste and Odor

The Sub-Zero 4204490 replacement water filter is designed to reduce chlorine taste and odor, helping improve the taste of water supplied through a compatible refrigerator filtration system.

Verified Contaminant Reduction

According to the manufacturer's performance data, the 4204490 filtration system reduces specified contaminants, including lead, mercury, asbestos, certain pesticides, and cysts, under tested conditions. Actual performance depends on proper installation, maintenance, and water conditions.

Convenient Twist-In Replacement

The twist-in cartridge design allows replacement through the refrigerator's designated filter access point. Follow the instructions for your specific Sub-Zero model to remove the old cartridge and install the replacement correctly.

Up to 12 Months of Filter Life

The cartridge is designed for up to 750 gallons of rated capacity and up to 12 months of use. Replace it when the filter indicator appears, water flow noticeably decreases, or the recommended replacement interval is reached, whichever comes first.

Compatible Sub-Zero Refrigerator Models

The 4204490 water filter is listed for compatible models within these series:

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

Important compatibility note: Some older Classic BI refrigerators use a different filter style. For BI units with serial numbers from 4116297 to 4134313, check the original filter part number. Units earlier than serial number 4116297 may require a different replacement. Verify the model, serial number, and existing cartridge before purchasing.

Compatible Part Number: 9030868, 4290510
Replacement Part Number: 4204490