Sub Zero 4204490 Water Filter & 7042798 Air Cartridge Combo Pack

One box, two upgrades for your kitchen. This pack pairs a full water filter swap with a fresh air cartridge, so your Sub-Zero handles drinking water and produce storage with equal care.

What's Inside This Pack

You get a complete sub zero water filter replacement 4204490 for your dispenser and ice maker, plus a Sub Zero 7042798 Air Cartridge built for the fridge's internal air system. Together they cover the two things that quietly affect freshness the most: what you drink and what your food sits in.

The Water Side of the Pack

Tap water carries chlorine, sediment, and taste issues that most people don't notice until they're gone. This sub zero water filter replacement pulls those out through an activated carbon block, so water and ice both come out cleaner. Once it's installed, your dispenser runs at full flow instead of the sluggish trickle a worn-out filter leaves behind.

The Air Side of the Pack

The Sub Zero 7042798 Air Cartridge is the current part number for Sub-Zero's air purification system, replacing the older 7007067 unit in the same housing. It cycles the air inside your fridge roughly every 20 minutes, cutting down on bacteria, mold spores, and the ethylene gas that pushes fruits and vegetables toward spoilage sooner than they should.

Why Produce Lasts Longer

Ethylene gas builds up fast in a sealed refrigerator, and it speeds up ripening for everything nearby, not just the item producing it. A sub zero air purification cartridge-7042798 keeps that gas from accumulating, which is part of why produce drawers stay firmer for longer with a fresh cartridge in place.

Why the Fridge Smells Better

Onions, leftovers, and strong cheeses tend to leave their mark on everything else in the fridge. Regular air cycling from a sub zero air purifier cartridge keeps those odors from lingering and spreading to milk, butter, or anything else that picks up smells easily.

Straightforward Installation

Neither part needs a technician. The water filter locks in with a quarter turn behind the top grille. The air cartridge is a tool-free sub zero air purification cartridge replacement that snaps into its housing inside the cabinet. Both jobs together take about five minutes.

Specifications