Sub-Zero 4204490 & 7007067 Combo Pack: Is It the Right Fit for Your Refrigerator?

Buying a water filter and an air cartridge separately, on two different schedules, gets old fast. This combo pack bundles Sub-Zero's standard water filter with its standard air cartridge so you can knock both out in one order.

But Sub-Zero actually sells two different air cartridges, and picking the wrong one is an easy mistake to make if you haven't checked your fridge closely. Let's walk through exactly how to confirm this combo is the right match for you.

Why This Combo Creates Confusion at Replacement Time

The confusion here comes from two different directions.

First, Sub-Zero sells two different air purification cartridges, the 7007067 and the 7042798, and they are not the same technology. The 7007067 uses passive carbon filtration. The 7042798 is an electrically powered active system built into a Pure Air compartment. Buyers who don't check which cartridge housing their fridge actually has sometimes order the wrong combo entirely.

Second, the water filter half and the air filter half run on completely different replacement schedules, twelve months for the 4204490 and six months for the 7007067, which means the two parts in this single combo box won't actually need replacing again at the same time. That catches some people off guard after their first cycle.

Where to Find Your Part Numbers Before Ordering

Step 1. Locate your current water filter, typically behind the upper right grille panel on a built-in refrigerator.

Step 2. Check the label. It should read 4204490, or one of its cross-referenced codes, 4290510 or 9030868.

Step 3. Locate your air cartridge housing inside the refrigerator compartment. Look for whether it's a simple snap-in slot or an electrically wired compartment with a Pure Air button on the control panel.

Step 4. Check the label on the current air cartridge. It should read 7007067 if your unit uses the passive, non-electric housing.

Step 5. If either label is unreadable, note your refrigerator's model number and serial number, both usually found inside the fresh food compartment, and use them to cross-reference the correct parts before ordering.

What Is the Sub-Zero 4204490 Water Filter

The 4204490 is Sub-Zero's standard refrigerator water filter, covering the Classic, Designer, Integrated, and Built-In series along with the Pro line. It's NSF 42 and ANSI certified, reducing chlorine taste and odor along with sediment and other common contaminants. It includes a built-in scale inhibitor and is rated for 750 gallons or 12 months, whichever comes first. It installs with a quarter-turn, tool-free design. It also cross-references with the part numbers 4290510 and 9030868, along with the InSinkErator F-1000 and F-2000 filters.

What Is the Sub-Zero 7007067 Air Purification Cartridge

The 7007067 is Sub-Zero's standard air purification cartridge, used in units with a passive, snap-in cartridge housing rather than an electrically connected one. It works by continuously pulling odors, ethylene gas, and airborne compounds out of the cabinet air, which helps produce stay fresher and keeps stored food from picking up smells from whatever's sitting nearby. It's rated for roughly 12 months of use and installs with a simple snap-in design, no tools required.

Is the 7007067 the Same as the 7042798

No. They're built on different technology entirely. The 7007067 is a passive carbon cartridge. The 7042798 is an electrically powered active purification system, part of Sub-Zero's Pure Air feature, and it requires a compatible wired housing to function. A refrigerator built for one will not properly support the other, since the housings and power connections differ. If your unit has a Pure Air button on the control panel, you need the 7042798 combo instead of this one.

Compatibility Checklist Before Ordering This Combo

• Confirm the water filter label shows 4204490, 4290510, or 9030868
• Confirm the air cartridge label shows 7007067
• Confirm your refrigerator does not have a Pure Air button or electrically wired cartridge compartment
• Confirm your unit is a Sub-Zero Classic, Designer, Integrated, Built-In, or Pro series model
• Confirm your refrigerator's serial number, if checking for the water filter side, falls after 4134313

If all five points check out, this combo is the correct match. If your fridge has a Pure Air button, stop here and look at the 4204490 and 7042798 combo instead.

Common Mistakes When Buying This Combo

Assuming newer always means better and ordering the 7042798 combo by default. The 7042798 isn't a universal upgrade, it requires a specific electrically wired housing. If your fridge doesn't have that housing, the 7007067 combo is correct, not a downgrade.

Confusing the water filter's serial number cutoff with the air cartridge's compatibility. These two checks are separate. A refrigerator can pass the water filter's serial number check and still need the different air cartridge, or vice versa. Confirm both independently.

Skipping the post-install flush. Run 2 to 3 gallons through the dispenser after installing the new water filter before drinking from it, to clear out carbon fines left over from manufacturing.

Not resetting both indicators after installation. The water filter and air cartridge each have their own reset process. Missing one means you'll get a false or missing reminder down the line.

Expecting both parts to run out at the same time going forward. They won't. The water filter lasts twice as long as the air cartridge, so plan on ordering a standalone 7007067 partway through the water filter's service life.

When to Replace Each Half of This Combo

• The water filter is due at 12 months or 750 gallons, whichever comes first
• The air cartridge is due at roughly 6 months, twice as often as the water filter
• Water or ice starting to taste flat or slightly chemical signals the water filter is due
• A fridge that's started smelling like stored food, even with everything wrapped properly, signals the air cartridge is due
• Your Sub-Zero's electronic filter monitoring system will also flag the water filter specifically when it's time

Ready to Order?

Once you've confirmed both halves match your Sub-Zero, this combo saves you a step and a bit of money compared to ordering each part separately.

Shop the Sub-Zero 4204490 & 7007067 Combo Pack at Hive Appliances

FAQs

Is the 7007067 the same length or size as the 7042798?

They're not directly comparable by size since they use different technology, one passive and one electrically active, but they are not interchangeable and are built for different cartridge housings entirely.

Does the 7007067 work as well as the newer 7042798?

Both are effective at what they're designed to do, they simply use different methods. The 7042798 actively purifies air on a cycle, while the 7007067 passively absorbs odors and compounds continuously. Neither is strictly better, the right one depends entirely on which housing your Sub-Zero has.

Can I upgrade my Sub-Zero from the 7007067 housing to the 7042798 system?

Generally no, this isn't a simple part swap the way some filter upgrades are. The 7042798 requires an electrically wired compartment and Pure Air control, which is a feature built into the refrigerator itself, not something that can be added by ordering a different cartridge.

Does the 4204490 in this combo reduce lead and other contaminants?

Yes. The 4204490 is NSF 42 and ANSI certified, tested to reduce chlorine taste and odor, sediment, and other common contaminants. Results can vary depending on your local water supply.

What happens if I don't replace the air cartridge on its six month schedule?

It gradually loses its ability to absorb odors and ethylene gas, which can lead to faster produce spoilage and a fridge that starts smelling like stored food, even without any indicator light to warn you.

Where can I check full specs on each part individually?

Both the 4204490 water filter and the 7007067 air cartridge have their own dedicated product listings at Hive Appliances if you want complete details before ordering.