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

Maintain two essential filtration functions with this Sub-Zero dual-filter replacement set. It contains a 4204490 water filter for drinking water and ice, along with a 7042798 air purification cartridge for compatible refrigerator air systems.

The water cartridge helps reduce chlorine taste and odour, while the air cartridge helps manage ethylene gas and unwanted smells inside the refrigerator. This bundle is suitable only for appliances that use both filter types, so check the existing cartridge numbers and your refrigerator's model details before purchase.

What's Included?

• 1 × Sub-Zero 4204490 Water Filter: A twist-in cartridge that helps reduce chlorine taste and odour and filters specified particulates.
• 1 × Sub-Zero 7042798 Air Purification Cartridge: Designed to help manage ethylene gas and unwanted refrigerator odours.

Product Details

• Brand: Sub-Zero
• Combo Type: Refrigerator water and air filtration set
• Water Filter Code: 4204490
• Air Cartridge Code: 7042798
• Water Filter Alternative Reference: 9030868
• Previous Air Cartridge Reference: 7007067
• Water Filter Connection: One-prong twist-in design
• Air Cartridge Service Life: Up to approximately 12 months, subject to appliance guidance and usage
• Installation: Separate compartments for the water and air cartridges
• Dimensions: Not confirmed in the manufacturer information reviewed

Benefits of Replacing Both Filters

• Cleaner-Tasting Water: The water filter helps reduce chlorine taste and odour in dispensed water.
• Better Refrigerator Odour Management: The air cartridge helps manage ethylene gas and unwanted smells within compatible appliances.
• One Convenient Order: Both replacement components come together, which can simplify maintenance planning.
• Updated Air Filter Reference: Sub-Zero lists 7042798 as the replacement for the earlier 7007067 cartridge. Confirm compatibility with your refrigerator before ordering.

Compatible Appliances

This combination is intended for selected Sub-Zero refrigerators that require both part numbers.

• Water filtration: Compatible models that use water filter 4204490 or its listed interchangeable reference, 9030868.
• Air purification: Compatible models equipped for air cartridge 7042798, which replaces 7007067.
• Model families to check: Selected Classic BI and CL, Designer IC, IT, ID, DEC and DET, and Professional refrigerators.

Important: Not every refrigerator in these series uses both cartridges. Verify the model and serial number and compare the existing filter codes before buying.

Filtration Functions

The two cartridges treat different things, so their functions should be considered separately.

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

Refer to the relevant manufacturer performance information for verified reduction claims. The water cartridge does not replace appropriate disinfection for microbiologically unsafe water.

Replacement Guide

1. Confirm that your refrigerator requires water filter 4204490 and air cartridge 7042798.
2. Use the appliance manual to locate the water filter housing.
3. Remove the old water cartridge using the specified twist-in method.
4. Install the new 4204490 filter and secure it in place.
5. Find the separate air purification compartment.
6. Remove the existing air cartridge and fit the compatible 7042798 replacement.
7. Flush the water filter according to the refrigerator instructions before drinking the water or making ice.
8. Reset the filter indicators if your appliance has them.
9. Follow the appliance's recommended replacement schedule for each cartridge.