What to match before buying
- The linked manufacturer sources explicitly list these 157 model codes for ULTRAWF.
- US refrigerator water-filter cartridge reference. Exact listed appliance codes only; no inferred finish or engineering suffix.
- Pack SKUs identify the same cartridge family in different pack quantities; they are not extra cartridge families.
- The exact model code is printed in the manufacturer chart; no engineering suffixes were added.
Find the model and filter codes
- Photograph the rating label inside the refrigerator.
- Keep the complete model code, including any finish, market or service revision suffix.
- Find that exact code in the model list on this page; an unlisted suffix needs its own manufacturer confirmation.
- Compare ULTRAWF with the cartridge specified in the appliance documentation.
- Compare the reference and pack on the final Amazon page; the shopping destination does not establish compatibility.
Other models and cartridge variants
- These sources do not extend compatibility to unlisted model variants or revisions.
- US source coverage does not establish compatibility for another regional model.
Manufacturer sources
- Frigidaire manufacturer compatibility chart, page 4, ULTRAWF table (manufacturer-branded PDF hosted by Home Depot; observed 2026-10-12)
- Frigidaire official PureSource Ultra water filter
Documentation reviewed by Codex (manufacturer documentation). Checked 12 Oct 2026. This is a source review, not a physical fitting test.