Refrigerators · parts
Samsung RF18A5101SR/AA water filter: HAF-QIN
Samsung's official product page identifies the stainless RF18A5101SR/AA refrigerator, while its HAF-QIN filter page lists RF18A5101** in the compatible-model field. The full appliance code falls within that stated family pattern; this record is limited to RF18A5101SR/AA and HAF-QIN/HAF-QIN/EXP, not every Samsung fridge. Samsung's replacement instructions call for using the exact model's manual for filter location and indicator reset.
Safety boundary
- Follow Samsung's exact model manual and official filter-replacement guide; shut off water if that model's instructions require it.
- Turn and seat the cartridge only as the exact model instructions show. Do not sand, cut, or alter filter tabs or housing.
- If a leak appears after replacement, stop using the dispenser and address the leak before continuing.
Compatibility requires a direct model listing, explicit supersession, or equivalent manufacturer evidence.
Required identifiers
- Complete Samsung model: RF18A5101SR/AA (model code RF18A5101SR, regional suffix /AA)
- Filter family marking: HAF-QIN; Samsung package/SKU label may show HAF-QIN/EXP
- Confirm that the existing filter housing and cartridge family match before purchase
Compatibility rules
- Samsung's US HAF-QIN filter fit list includes model family RF18A5101**; the exact US appliance model RF18A5101SR/AA is independently identified on Samsung's product page.
- This record's claim is bounded to RF18A5101SR/AA with HAF-QIN, and does not expand the fit claim to similar RF-series models.
- Samsung lists HAF-QIN and HAF-QIN/EXP naming on its official filter page; use the filter family printed on the current cartridge or exact model support page.
Never assume
- All Samsung RF-series refrigerators use HAF-QIN.
- A wildcard family fit list makes all Samsung suffixes, regions, or filter head revisions identical.
- HAF-QIN, HAF-CIN, HAF-CU1, and other Samsung filter families cross-fit.
- A filter that requires force or fails to lock is compatible.
Exact model and filter-family match
- Samsung appliance: RF18A5101SR/AA (stainless; model code RF18A5101SR).
- Samsung HAF-QIN filter listing includes RF18A5101** in its fits-model field.
- Samsung markets the cartridge as HAF-QIN / HAF-QIN/EXP.
- Limit this page to the full model string above; a different region suffix or filter marking requires a fresh Samsung lookup.
What to verify before ordering
The HAF-QIN page uses a wildcard family entry. The exact appliance page establishes that RF18A5101SR/AA is a real US model within that named family. Keep the wildcard receipt visible and do not rewrite it as proof that every Samsung refrigerator uses the same cartridge. If the appliance label or old cartridge differs, stop and use Samsung's model-specific filter lookup.
After fitting
Samsung's instructions say replacement and filter-indicator reset vary by refrigerator interface. Follow the RF18A5101SR/AA manual for the exact sequence and flush/purge guidance rather than assuming a control-button sequence from another Samsung model.