LG LT800P vs LT1000P: Which Filter Fits My Fridge?

The LT800P and LT1000P are different LG filters, and LG's chart lists each fridge model under only one. The LT800P fits 9 models, such as the LMXS30756 and LNXS23726. The LT1000P fits about 40, and LG's US pages for its current fridges name it. Match your model number below, or read the label on your old filter.

By Erin Rose · Fit lists and certifications checked October 29, 2026 · How we check

LT800P: our pick, certified for lead, costs less

Waterdrop Plus WDP-F20

$19.99 on Amazon (price as of November 12, 2026 at 12:18 PM ET)

NSF lists this exact model code, WDP-F20, for lead, cysts, mercury, benzene, carbofuran, endrin (NSF/ANSI 53) and traces of medicines (NSF/ANSI 401). Rated for 200 gallons. Pack: 1 filter.

Check price on Amazon Or LG's own LT800P ($129.99) →

LT1000P: our pick, certified for lead, costs less

Waterdrop Plus WDP-F46

$34.39 on Amazon (price as of November 12, 2026 at 12:18 PM ET)

NSF lists this exact model code, WDP-F46, for lead, cysts, mercury, benzene, carbofuran, endrin (NSF/ANSI 53) and traces of medicines (NSF/ANSI 401). Rated for 200 gallons. Pack: 3 filters.

Check price on Amazon Or LG's own LT1000P ($47.00) →

Amazon prices as of November 12, 2026 at 12:18 PM ET. Prices can change; the price on Amazon is the one that counts.

LT800P and LT1000P side by side

Filter	Fridge models in LG's chart	LG part numbers	What NSF lists for LG's own filter
LG LT800P Change every 6 months or 200 gallons	9 models, listed below	ADQ73613401, ADQ73613408	Lead and cysts NSF/ANSI 42 and 53
LG LT1000P Change every 6 months or 200 gallons	About 40 models, including LG's current fridges	ADQ74793501, AGF80300704, AGF80300705	No NSF listing found LG's page says NSF/ANSI 42, 53 and 401

Which fridge models take which

LG's chart gives every fridge model one filter type. LG's US site has no model list. It has a Find Your Filter tool where you enter your model. The chart is on LG Canada's site, and LG sells the same LT800P and LT1000P in the US.

LT800P fits these 9 models

LMXC23746 · LMXS30756 · LMXS30776 · LMXS30786 · LNXS23726 · LNXS30866 · LNXS30996 · LPXS30866 · LSC22991

LT1000P fits about 40 models

A few from LG's chart: LRSOS2706 · LRSXS2706 · LRMVS3006 · LRMXS2806 · LRFVC2406 · LSXS26396 · LFXS28968 · LFXC24796

LG's US pages tell the same story by fridge type. Every LG fridge page we read that names a water filter names the LT1000P. That covers French-door fridges (LRFGC2706S, LRFLC2716V, LRMXS3006S, LF24Z6530S), side-by-sides (LRSOS2706S, LS27T3230S), a bottom-freezer (LB26H2200S) and a top-freezer (LTCS20020B).

Not on either list?

LG's chart has a separate group of older models on the LT700P. LG also names the LT500P, LT600P and LT900X3 as other LG filters. Read the label on your old filter or use Find Your Filter. If the label says LT700P, this page is not the right one.

LT800P: LG's filter and certified copies

Filter	Certified for	Who certified it	Per filter	Per year
Waterdrop Plus WDP-F20 Model WDP-F20 · 1 filter	Lead and cysts, traces of medicines	NSF 42, 53, 401	$19.99	$39.98	Amazon →
LG LT800P, 3-pack (LG's own filter) Model LT800P · 3 filters	Lead and cysts	NSF 42, 53	$43.33	$86.66	Amazon →
LG LT800P, 2-pack (LG's own filter) Model LT800P · 2 filters	Lead and cysts	NSF 42, 53	$49.99	$99.99	Amazon →

NSF lists LG's LT800P (model ADQ73613401-S) for NSF/ANSI 42 and 53, including lead and cysts, for 200 gallons. NSF does not list it under NSF/ANSI 401 or for PFOA or PFOS. Read October 29, 2026. Per year = 2 filters, because LG says to change it every 6 months.

LT1000P: LG's filter and certified copies

Filter	Certified for	Who certified it	Per filter	Per year
Waterdrop Plus WDP-F46 Model WDP-F46 · 3 filters	Lead and cysts, traces of medicines	NSF 42, 53, 401	$11.46	$22.93	Amazon →
Waterdrop Plus WDP-F46, with air filters Model WDP-F46 · 2 water filters + 2 air filters	Lead and cysts, traces of medicines	NSF 42, 53, 401	$13.49	$26.99	Amazon →
LG LT1000P (LG's own filter) Model LT1000P · 1 filter	No certification listing found Box says NSF/ANSI 42, 53, 401	None found	$47.00	$94.00	Amazon →
LG LT1000P2 (2-pack of LG's own filter) Model LT1000P · 2 filters	No certification listing found Box says NSF/ANSI 42, 53, 401	None found	$48.69	$97.37	Amazon →

LG's Amazon listing says the LT1000P is certified to NSF/ANSI 42, 53 and 401. We searched NSF, IAPMO and WQA on October 13, 2026 by every LT1000P part number and found no listing for it. NSF does list two older LG fridge filters (LT600P and LT800P). A listing under another company name is possible; we did not find one. Per year = 2 filters, because LG says to change it every 6 months.

Look at the model code, not the brand

The same factory sells one copy in two versions that look alike. NSF lists the plain Waterdrop WD-F20 (LT800P) and WD-F46 (LT1000P) for taste and odor only. It lists the Waterdrop Plus WDP-F20 and WDP-F46 for lead and cysts too. Only the model code tells them apart, and the code is in the Amazon listing's details. More on the LT1000P copies is on our LG LT1000P page.

Not sure what is in your water? Look up your water system.

Common questions

Is the LT800P the same as the LT1000P?

No. They are two LG filters with different part numbers: ADQ73613401 is the LT800P and ADQ74793501 is the LT1000P. LG's chart gives each fridge model one filter type, so buy the one your model is listed under. Both are rated for 6 months or 200 gallons.

Which LG fridges use the LT800P?

LG's chart lists 9 models: LMXC23746, LMXS30756, LMXS30776, LMXS30786, LNXS23726, LNXS30866, LNXS30996, LPXS30866, LSC22991. Models that are not in the chart's LT800P group use another filter.

Which LG fridges use the LT1000P?

LG's chart lists about 40 models for the LT1000P, such as the LRSOS2706, LRSXS2706, LRMVS3006 and LSXS26396. LG's US pages for its current French-door, side-by-side, bottom-freezer and top-freezer fridges name the LT1000P as the filter.

What if my fridge is on neither list?

Read the label on your old filter, or enter your fridge model in LG's Find Your Filter tool. LG's chart also has a separate group of older models on the LT700P, and LG names the LT500P, LT600P and LT900X3 as other LG filters. This page covers the LT800P and LT1000P.

Is the LG LT800P certified?

Yes. NSF lists LG's LT800P (model ADQ73613401-S) for NSF/ANSI 42 and 53, including lead and cysts, for 200 gallons. It does not list it for NSF/ANSI 401.

Is the LG LT1000P certified?

LG's page says NSF/ANSI 42, 53 and 401. On October 29, 2026 we searched NSF for LT1000P, LT1000PC, LT1000PCS, ADQ747935, ADQ74793501, MDJ64844601 and AGF80300705 and found no listing under LG's name. NSF does list the Waterdrop Plus WDP-F46, an LT1000P copy, for 42, 53 and 401, so that is our certified pick.

Sources

LG's refrigerator-by-filter chart, in LG's help articles Water Filter (LT800P) Replacement and Instructions and Water Filter (LT1000P) Replacement and Instructions (LG Canada), read twice on October 29, 2026. The LT800P group matched both times. Models shown for the LT1000P are ones that appeared both times.
LG US product pages, read October 29, 2026: LT800P (NSF42 and NSF53, 6 months, 200 gallons), LT1000P (NSF42, NSF53 and NSF401, 6 months, 200 gallons), and the fridge pages LB26H2200S, LF24Z6530S, LRFGC2706S, LRFLC2716V, LRMXS3006S, LRSOS2706S, LS27T3230S and LTCS20020B on lg.com/us/refrigerators.
LG, how to replace the water filter in your LG refrigerator (other LG filter models; check the label on the old filter), read October 29, 2026.
NSF certified product listings, read October 29, 2026: LT800P (LG Electronics, ADQ73613401-S: NSF/ANSI 42 and 53; Waterdrop WDP-F20 is at WDP-F20) and LT1000P (copies only; Waterdrop WDP-F46 is at WDP-F46).
Amazon listings and prices: read through Amazon's product API. Prices as of November 12, 2026 at 12:18 PM ET. We show a price only if we read it in the last 24 hours, and match each listing to the certified model code in Amazon's model and part fields.