Sub-Zero 4204490 Refrigerator Water Filter – Genuine OEM Replacement

Sub-Zero 4204490: Clean, Fresh-Tasting Water

The Sub-Zero 4204490 is a genuine OEM water filter for your Sub-Zero refrigerator. It uses an activated carbon block to trap unwanted stuff in your tap water. The result is clean, great-tasting water and ice, every time.

What Does the Sub-Zero 4204490 Remove From Water?

This filter reduces:

• Chlorine taste and smell
• Lead
• Mercury
• Sediment and other small particles

How Long Does It Last?

Each filter lasts up to 6 months, or about 300 gallons, before you need a new one. A simple twist is all it takes to swap it out. No tools needed.

What Refrigerators Does It Fit?

This filter works with:

• Classic Series models (BI and CL series)
• Designer Series models (IT, IC, DEC, and DET series)
• Pro Series models (648PRO, PRO3650, and PRO4850)

Not sure if this filter fits your model? Check your fridge’s manual, or reach out to our team before you order.

Is It Tested for Safety?

Yes. This filter meets NSF/ANSI Standards 42 and 53. That means it’s tested to remove the contaminants it claims to remove, so you can trust what’s coming out of your tap.

Easy to Install

1. Lift the grille or open the filter compartment.
2. Twist the old filter a quarter turn to the left.
3. Pull it straight out and throw it away.
4. Push the new filter in and twist it a quarter turn to the right.
5. Run a few gallons of water through it before you drink it, to clear out any carbon dust.

Frequently Asked Questions

How often should I replace the Sub-Zero 4204490 filter?
Replace it every 6 months, or after about 300 gallons, whichever comes first.

Does this filter fit all Sub-Zero refrigerators?
It fits Classic, Designer, and Pro series models. Check your manual to confirm your exact model.

Do I need tools to install it?
No. It installs with a simple quarter turn, by hand.

Need to freshen the air too? Check out our Sub-Zero 7042798 air filter.