Fridge Filter Match

Sub-Zero cartridge references

Sub-Zero 4204490 water filter

Manufacturer cartridge reference

Twist-in Water Filter

Manufacturer documentation reviewed by Codex (manufacturer documentation). Checked . This is a source review, not a physical fitting test.

3 exact US refrigerator models across 1 documented compatibility record.

Read the complete compatibility list and restrictions

Cartridge identity and replacement notes

Manufacturer reference: 4204490. Documented market: US.

Other labels for this cartridge

9030868

Other labels and replacement references describe the cartridge relationship. They do not add approved refrigerator models to the exact compatibility list below.

  • 4204490 and 9030868 are explicitly interchangeable in the manufacturer table.
  • Classic BI requires serial-number confirmation: 4204490 from serial 4134313; between 4116297 and 4134313 match the original filter reference. Earlier units have a different push-in housing.
  • Manufacturer also names Classic BI/CL and Designer IT/IC/DEC/DET families; do not derive unsourced complete model codes.

Cartridge manufacturer sources

Manufacturer documentation reviewed by Codex (manufacturer documentation). Checked . This is a source review, not a physical fitting test.

Documented refrigerator compatibility

Match the complete refrigerator code, including every revision digit and suffix. Each record below applies only to its listed models, part scope and markets. A shared appliance brand or cartridge alias does not establish another fit.

Sub-Zero 648PRO

Sub-Zero lists 4204490 for the 3 US model codes below.

Documented market: US. Cartridge reference: 4204490.

Exact refrigerator models covered

  • 648PRO
  • PRO3650
  • PRO4850

Fit notes

  • The linked manufacturer sources explicitly list these 3 model codes for 4204490.
  • 4204490 and 9030868 are explicitly interchangeable in the manufacturer table.
  • Classic BI requires serial-number confirmation: 4204490 from serial 4134313; between 4116297 and 4134313 match the original filter reference. Earlier units have a different push-in housing.
  • Manufacturer also names Classic BI/CL and Designer IT/IC/DEC/DET families; do not derive unsourced complete model codes.
  • Exact model listed by the official filter applicability table.

Restrictions and other variants

  • These sources do not extend compatibility to unlisted model variants or revisions.
  • US source coverage does not establish compatibility for another regional model.

Model-specific manufacturer sources

Manufacturer documentation reviewed by Codex (manufacturer documentation). Checked . This is a source review, not a physical fitting test.