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Refrigerators · parts

LG LFXS26973S refrigerator water filter: LT1000P

For the LG LFXS26973S 26.2-cu.-ft. French-door refrigerator, LG's product page lists an LT1000P replacement filter and the official model specification sheet shows LT1000P as the Water Filter for the LFXS26973_ family. The full support code LFXS26973S.ASTCNA2 is also listed in LG's product-support page. This record is limited to the LFXS26973S model; it does not claim that LT1000P fits every LG refrigerator or that every generic-looking cartridge is genuine.

Safety boundary

  • Use the LFXS26973S manual for filter location, removal/installation, priming, and filter-indicator reset.
  • Do not force a cartridge that will not align and lock normally; check the exact part marking and model if it resists.
  • If water leaks from the housing, stop dispensing and resolve the leak before continued use.
Part typeRefrigerator water filter cartridge

Compatibility requires a direct model listing, explicit supersession, or equivalent manufacturer evidence.

Required identifiers

  • LG product model: LFXS26973S
  • Full LG support/product code shown by LG support: LFXS26973S.ASTCNA2
  • Filter name and part code: LG LT1000P

Compatibility rules

  • LG's LFXS26973S official product page lists the LT1000P refrigerator water filter under its model accessories and specs.
  • The LG LFXS26973_ specification sheet lists LT1000P as the water filter and gives model/color-specific UPCs including LFXS26973S.
  • Use this record for the exact LFXS26973S model family only. The `LFXS26973_` in the shared spec-sheet heading is a model family notation, not permission to extend fit to other LFX or LT-series models.

Never assume

  • All LG refrigerators use LT1000P.
  • LFXS26973S color/model suffix makes other LFXS26973 or LFX models equivalent without their own LG part receipt.
  • A third-party cartridge with matching dimensions has LG's genuine fit, certification, or warranty treatment.
  • Filter choice alone proves a no-water or low-flow symptom is caused by the cartridge.

Exact model and filter identity

  • LG appliance model: LFXS26973S, 26.2-cu.-ft. French-door refrigerator.
  • LG product support code: LFXS26973S.ASTCNA2.
  • Water-filter code on LG model product/specification: LT1000P.
  • The model spec sheet also distinguishes the refrigerator's separate Fresh Air Filter; LT1000P is the water filter.

Fit and boundary

LG's product page links the LT1000P replacement filter directly from LFXS26973S. The spec sheet's family header uses an underscore where model variants can differ, so this record does not claim fit for any model beyond the exact listed LFXS26973S appliance family. Confirm the model label and old cartridge marking before ordering.

Filter-finder guidance

LG's Water & Air Filter Finder returns up to 10 predictive suggestions, so an absent suggestion alone is not proof of incompatibility. Use LG's exact product-support/parts lookup and model manual if the label or filter marking differs from this record.

Sources and claim boundariesReviewed 2026-10-02
LG Electronics USA: LFXS26973S 26-cu.-ft. French Door RefrigeratorExact model page identifies the LFXS26973S refrigerator and lists the LT1000P replacement water filter in product specs/accessories.Open official source →LG USA Support: LFXS26973S.ASTCNA2 Support, Manuals, Warranty & MoreLG support page identifies the complete product-support code LFXS26973S.ASTCNA2 and provides model manuals and parts entry.Open official source →LG Electronics USA: LFXS26973_ LG Refrigeration Specification SheetPrinted page 1 lists LT1000P in Water & Ice System; the specification sheet covers LFXS26973_ variants and prints separate S/D model UPCs. Exact S model is independently named by LG product/support pages.Open official source →LG USA Support: LG Water & Air Filter FinderLG's filter finder is model-based and states its predictive results are limited to 10; used only as a lookup caveat, not as the part-fit receipt.Open official source →
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