Filter fitment · certification-checked · data captured 2026-08-09
Which water filters fit the LG LRFXS2503S?
The LG LRFXS2503S uses the LT1000P filter (ADQ74793501/502 family). Of the compatible filters in our verification dataset, 4 are confirmed certified for the exact filter model in the official certification databases.
Every filter we checked for this refrigerator
| Filter | Certification verification |
|---|---|
| LG LT1000P (OEM) | Not in our dataset |
| Waterdrop WD-LT1000P | Certified — NSF/ANSI 42 + 53 |
| AQUACREST AQF-FF46 | Brand certified — not this model |
| ICEPURE RWF4700A-S/RWF4700BB | No listing found |
| GLACIER FRESH GF-1000P | Certified — NSF/ANSI 42 |
| Filterlogic FL-RF46 | Certified — other scope |
| Maxblue MB-LT1000P | Certified — NSF/ANSI 42 + 53 |
How to read this: a filter counts as certified only when its exact model number appears in the NSF, IAPMO R&T, or WQA public databases under a drinking-water filtration scope. Marketing phrases like “meets NSF standards” or “tested to NSF/ANSI 42” are not certifications — our verification study found that 56% of listings claiming certifications are not backed by the databases for the model sold.
Where to buy a verified-certified filter for this model
- Waterdrop WD-LT1000P — Certified — NSF/ANSI 42 + 53, direct from the manufacturer’s own store
These are affiliate links: we may earn a commission if you buy, at no extra cost to you. Only filters whose certification we verified for the exact model appear here — commissions never influence verdicts. Full disclosure.
Related refrigerators
- LG LMXS28626S — 28 cu.ft. 4-Door French Door w/ Door-in-Door — uses the same LT1000P filter
- LG LFXS28968S — 28 cu.ft. French Door w/ InstaView — uses the same LT1000P filter
- LG LRFVS3006S — 30 cu.ft. InstaView French Door — uses the same LT1000P filter
- LG LRMVS3006S — 30 cu.ft. Mirror InstaView Door-in-Door w/ Craft Ice — uses the same LT1000P filter
- LG LFXS26596S — 26 cu.ft. 3-Door French Door — uses the same LT1000P filter
- LG LFXS26973S — 26 cu.ft. French Door — uses the same LT1000P filter
- LG LRSXS2706S — 27 cu.ft. Side-by-Side (flat-panel, ThinQ) — uses the same LT1000P filter
- LG LMXC23796S — 22.7 cu.ft. Counter-Depth 4-Door w/ InstaView Door-in-Door — uses the same LT1000P filter
Fitment sources: manufacturer and retailer fitment listings for this exact refrigerator model — filtersfast.com · lg.com. Certification data captured 2026-08-09; databases change — check the current listing before relying on it. See all models on the fitment index.