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LG LT1000P vs LT700P — which water filter do you need?
LG’s LT1000P and LT700P look similar but are not interchangeable. Buy the wrong one and it may not seat or could leak.
Quick answer
- Your fridge was designed for one filter — check the old cartridge or model number.
- LT1000P — newer series, common on many 2017+ LG French-door fridges. Shop: LG LT1000P
- LT700P — older series, common on 2011–2016 models.
Side-by-side
| LT1000P | LT700P | |
|---|---|---|
| Typical era | 2017 and newer | 2011–2016 |
| Capacity | ~200 gallons / 6 months | ~200 gallons / 6 months |
| Certification | NSF 42, 53, 401 | NSF 42, 53 |
| Common ADQ code | ADQ74793501 | ADQ36006101 |
How to know which one fits
- Look at the old filter — code on the cap.
- Check the fridge model number (left interior wall).
- Match the ADQ code —
ADQ74793501→ LT1000P;ADQ36006101→ LT700P.
Filtration difference that matters
LT1000P adds NSF 401 emerging-contaminant claims the LT700P does not. Background: NSF standards explained.
After install: reset the LG filter light.
FAQ
Can I upgrade an LT700P fridge to LT1000P?
Only if LG lists LT1000P for that model. Do not force a different cartridge.
How often should I replace either filter?
About every 6 months — replacement schedule.
Where can I compare prices?
Open the LT1000P product page or search your model on Filter Searcher.
Next step: Find your exact LG filter →