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

The Sub-Zero 4204490 refrigerator water filter is a replacement cartridge designed for compatible Sub-Zero refrigerators. It helps reduce chlorine and other specified contaminants while improving the taste and odor of filtered water. This filter is designed for select Classic, Designer, and Pro series refrigeration systems that use a compatible twist-in water filter.

The Sub-Zero 4204490 water filter features a twist-in installation design for convenient cartridge replacement. It is interchangeable with part number 9030868, making both numbers useful when identifying the correct replacement. The cartridge is designed to last up to one year under normal use, although water quality, household consumption, and the refrigerator's filter indicator may affect when it needs to be changed.

Before ordering, check your refrigerator's model and serial number to confirm that it uses the 4204490 cartridge. Some Sub-Zero Classic BI models require a different filter depending on the appliance's specifications and serial number. Choosing the correct cartridge helps maintain the intended performance of your refrigerator's water filtration system.

Product Details

• Product Name: Sub-Zero 4204490 Refrigerator Water Filter
• Part Number: 4204490
• Pack: single, 1 pack
• Interchangeable Part Number: 9030868
• Filter Type: Refrigerator water filter cartridge
• Installation Type: Twist-in
• Filtration Benefits: Helps reduce chlorine and improve water taste and odor
• Compatible Series: Select Classic (BI, CL), Designer (IT, IC, DEC, DET), and Pro (648PRO, PRO3650, PRO4850) refrigeration models
• Designed Filter Life: Up to 12 months
• Application: Filtered drinking water and ice in compatible refrigerators
• Replacement Guidance: Follow the refrigerator's maintenance instructions and filter-life indicator

Special Features

Helps Improve Water Taste and Odor

The Sub-Zero 4204490 water filter helps reduce chlorine and unwanted tastes and odors in water. This makes it a suitable replacement for compatible Sub-Zero refrigerators with built-in water filtration. Its filtration performance applies to the specific contaminants and conditions documented for this filter.

Designed for Compatible Sub-Zero Refrigerators

This cartridge is intended for select Sub-Zero Classic, Designer, and Pro series refrigeration systems. Checking the existing filter number and refrigerator serial number before ordering helps prevent compatibility issues. Not every refrigerator within these series uses the same filter.

Interchangeable Part Number

The Sub-Zero 4204490 is interchangeable with part number 9030868, according to the manufacturer's part-number guide. If your existing cartridge or appliance documentation lists either number, verify compatibility with your specific refrigerator before purchasing.

Twist-In Cartridge Design

The twist-in design allows the cartridge to be removed and replaced through the refrigerator's designated filter compartment. Follow the appliance-specific instructions to remove the old filter, install the new cartridge, and reset the filter indicator where applicable.

Up to One Year of Filter Use

The 4204490 cartridge is designed to last up to one year. Actual replacement timing may vary with water quality and usage. Replace the filter when required by the refrigerator's filter indicator or maintenance instructions, or sooner if water flow becomes too low.

Compatibility

The Sub-Zero 4204490 refrigerator water filter is listed for use with select models in these series:

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

Related Part Number: 9030868, 4290510

Compatibility can vary by model and serial number, particularly within the Classic BI series. Check the existing filter cartridge, appliance model, and serial number against the manufacturer's filter guide before ordering.

Contaminants It Reduces

The Sub-Zero 4204490 filter helps reduce chlorine and improve the taste and odor of filtered water. The manufacturer's performance information also identifies specific particulate and contaminant reduction claims for this filter.

Refer to the manufacturer's published performance data for the exact substances covered by the 4204490 filtration claims. Do not assume that it removes every contaminant or makes microbiologically unsafe water safe to drink.

Installation Instructions

1. Confirm that your refrigerator uses the Sub-Zero 4204490 twist-in water filter.
2. Locate the filter compartment using your refrigerator's use and care guide.
3. Remove the existing cartridge by turning it counterclockwise approximately one-quarter turn, then pull it out.
4. Remove the new filter from its packaging and take off the protective plastic cap.
5. Insert the replacement cartridge into the filter connection and turn it clockwise until seated.
6. Follow your refrigerator's instructions for flushing the water system and resetting the filter indicator, if applicable.
7. Check the filter connection for leaks before regular use.

A small amount of water may spill when removing the old cartridge. Always follow the instructions for your specific refrigerator model.