Sub-Zero 4204490 Water Filter & 7042798 Air Purification Cartridge Combo Pack

Keep your refrigerator's water and air filtration systems maintained with this Sub-Zero replacement filter duo. The set includes one 4204490 water filter and one 7042798 air purification cartridge for compatible Sub-Zero refrigerators.

The water filter helps reduce chlorine taste and odour in dispensed water, while the air cartridge helps manage ethylene gas and unwanted odours inside the refrigerator. Both components serve separate purposes and fit different compartments. Check your refrigerator's model, serial number and current filter codes to confirm that this combination is suitable for your appliance.

Specifications

Key Features

• Combined Air and Water Maintenance: Includes two different replacement cartridges in one convenient set.
• Water Taste Improvement: The 4204490 cartridge helps reduce chlorine taste and odour in compatible refrigerators.
• Refrigerator Odour Management: The 7042798 air cartridge helps manage ethylene gas and unwanted smells inside the appliance.
• Replacement for Earlier Air Cartridge: Part 7042798 replaces the earlier 7007067 cartridge in compatible systems.
• Practical Filter Planning: Ordering both components together can help when the refrigerator's air and water filters need replacement around the same time.

Compatibility

• Brand: Sub-Zero.
• Water Filter: 4204490, also associated with part number 9030868.
• Air Purification Cartridge: 7042798, which replaces 7007067.
• Compatible Models: Selected Classic BI and CL, Designer IC, IT, ID, DEC and DET, and Professional models, subject to the required filter configuration.
• Fit Check: Confirm that your refrigerator uses both part numbers. Model and serial number differences may affect compatibility.

Contaminants It Reduces

The two cartridges provide separate filtration functions rather than treating the same medium.

• Chlorine taste and odour in water: The 4204490 water filter helps improve the taste and smell of dispensed water.
• Specified particulates: The water cartridge filters particulate matter covered by its performance specifications.
• Ethylene gas: The 7042798 air cartridge helps manage ethylene within compatible refrigerators.
• Unwanted refrigerator odours: The air purification cartridge helps manage odours inside the appliance.

Check the manufacturer's performance information for verified reduction claims and applicable levels. The water filter should not be relied on as the sole treatment for microbiologically unsafe water.

Installation Instructions

1. Check your refrigerator's model and serial number to verify that it requires both 4204490 and 7042798.
2. Find the water filter compartment by following the appliance manual.
3. Release the existing water cartridge using the specified twist-in method.
4. Install the 4204490 replacement in the water filter housing.
5. Locate the separate air purification compartment.
6. Remove the old air cartridge and fit the 7042798 replacement according to the appliance instructions.
7. Check that both cartridges are seated securely.
8. Flush the water filter as directed before drinking the water or using the ice maker.
9. Reset the relevant filter indicators if your refrigerator has them.