LG sells several refrigerator filter families that look alike and don't swap — and the old cartridge often shows a long part number like ADQ36006101 instead of a friendly name. Here's how to translate that number into the right LG filter in under a minute.
Pull the old cartridge and read its label, then find that number below. LG's own product pages list these part numbers for each family:
| Number on your filter | LG family | Genuine replacement |
|---|---|---|
| ADQ74793501, ADQ74793507, AGF80300703, AGF80300704, AGF80300705 | LT1000P | LG LT1000P — about 36,000 ratings, among the best-selling items in all of Amazon's tools and home-improvement department · 3-pack |
| ADQ36006101, ADQ36006111, ADQ36006113, AGF80300701, AGF80300702 | LT700P | LG LT700P — 12,500+ ratings |
| ADQ73613401, ADQ73613408 | LT800P | LG LT800P — 8,300+ ratings |
| ADQ72910901, ADQ72910911, 5231JA2002A | LT500P | search "LG LT500P genuine" and confirm the part number on the listing |
LG's Amazon listings also print one more number per family — ADQ75795105 on LT1000P, ADQ75795103 on LT700P, ADQ75795104 on LT800P — so if your label shows one of those, it maps the same way.
LG is explicit that its refrigerators don't all use the same filter, and each family has its own mount — a cartridge from the wrong family won't seat properly, and a poorly seated filter is how leaks start. The families also differ in certification: LG lists LT1000P against NSF/ANSI 42, 53 and 401 (the standard for incidental contaminants such as some pharmaceuticals), while LT700P and LT800P are listed against NSF/ANSI 42 and 53. That difference doesn't make them interchangeable — the number on your filter decides.
LG rates all four families at 6 months or 200 gallons, whichever comes first. Write the install date on the new cartridge, and if your fridge has a filter light, reset it after the swap. The whole-home filter schedule puts this date next to the furnace, pitcher and humidifier filters.
Compatible cartridges for these numbers are everywhere and cost less. LG's position, printed on its own listings, is that third-party filters can cause damage and aren't covered under the LG warranty. If your fridge is under warranty, genuine is the low-risk call; if you buy compatible, choose a listing that names your exact part number and shows a real certification mark — the same logic as the fridge filter guide, and the GE and everydrop decoders.
No. They're different LG filter families. Match the family to the number printed on your old filter, or look up your fridge's model number in LG's filter finder.
ADQ36006101 is an LG LT700P. ADQ74793501 is an LT1000P, and ADQ73613401 is an LT800P.
Every 6 months or 200 gallons, per LG — sooner if flow slows or the water tastes off.
On most French-door and side-by-side models, the upper right corner of the fresh-food compartment, sometimes the bottom left. Some older models put it behind the bottom front grille.