Shop genuine OEM Sub-Zero water filters — in stock and shipped fast from our U.S. warehouse, with free shipping and free returns. Every filter we sell is an authentic factory part from Sub-Zero in Madison, Wisconsin, never a third-party knockoff.

Which Sub-Zero water filter do I need?

• Sub-Zero 4204490 — Fits Classic (BI) series, Designer (IC / IT) series, and PRO 48 refrigerators. The most common Sub-Zero water filter. Replace every 6 months.
• Sub-Zero 7042803 (formerly 7012333) — Fits UC-15I and UC-15IO undercounter ice makers only. Same filter as the 7012333, just a new part number and packaging.
• Sub-Zero 7023812 — For older Sub-Zero refrigerators with a serial number before #4116297. Replace every 12 months.

Not sure which one fits your unit? Check your model number on the label inside the refrigerator compartment, or contact us — we'll match you with the right filter.

A fresh water filter keeps your Sub-Zero delivering clean, great-tasting water and ice, removes chlorine and sediment, and helps protect the internal components of your luxury refrigerator. All filters meet or exceed NSF/ANSI Standards 42 & 53. Also replacing your air filter? Save with our water + air filter combo pack.