PartAnswers

LT1000P filter: genuine vs replacement

Last checked October 28, 2026

Check before you buy

We found no certification listing for the genuine LG LT1000P itself in NSF, IAPMO R&T or WQA, as of our last check.

We found 13 replacement models listed by number: 5 cover NSF/ANSI 42, 53 and 401, and 4 are listed to NSF/ANSI 42 only, which covers taste and chlorine, not lead.

Verdict: check before you buy. The most complete listings we found belong to replacements such as AQUA CREST AQF-LT1000P-D, Amazon Basics AMZN-LT1000P-P, BBY Essential BE-LGLT1000P531 and 2 more; the genuine filter's own certification could not be confirmed in a public listing.

Sources: public listings read October 28, 2026, linked below. How we check.

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Your options, by listed certification

Genuine LG LT1000P
No listing found for the genuine filter in the databases we searched: IAPMO, NSF, WQA. That does not prove it is uncertified; it means we could not confirm it in a public listing.
AppliancePartsProsSears PartsDirect
Top tier AQUA CREST AQF-LT1000P-D
NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401
Rated capacity 200 gal · Lists lead reduction · NSF listing (read October 28, 2026)
Check on Amazon
Top tier Amazon Basics AMZN-LT1000P-P
NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401
Rated capacity 200 gal · Lists lead reduction · NSF listing (read October 28, 2026)
Check on Amazon
Top tier BBY Essential BE-LGLT1000P531
NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401
Rated capacity 200 gal · Lists lead reduction · NSF listing (read October 28, 2026)
Check on Amazon
Top tier Maxblue MB-LT1000P-D
NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401
Rated capacity 200 gal · Lists lead reduction · NSF listing (read October 28, 2026)
Check on Amazon
Top tier Waterdrop WDP-LT1000P
NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401
Rated capacity 200 gal · Lists lead reduction · NSF listing (read October 28, 2026)
Check on Amazon
Mid tier AQUA CREST AQF-LT1000P-P
NSF/ANSI 42NSF/ANSI 53No NSF/ANSI 401
Rated capacity 200 gal · Lists lead reduction · NSF listing (read October 28, 2026)
Check on Amazon
Mid tier INSIGNIA NS-LGLT1000P531
NSF/ANSI 42NSF/ANSI 53No NSF/ANSI 401
Rated capacity 200 gal · Lists lead reduction · NSF listing (read October 28, 2026)
Check on Amazon
Mid tier Maxblue MB-LT1000P-P
NSF/ANSI 42NSF/ANSI 53No NSF/ANSI 401
Rated capacity 200 gal · Lists lead reduction · NSF listing (read October 28, 2026)
Check on Amazon
Mid tier Waterdrop WDS-LT1000P
NSF/ANSI 42NSF/ANSI 53No NSF/ANSI 401
Rated capacity 200 gal · Lists lead reduction · NSF listing (read October 28, 2026)
Check on Amazon
Basic tier AQUA CREST AQF-LT1000P
NSF/ANSI 42No NSF/ANSI 53No NSF/ANSI 401
Rated capacity 200 gal · No lead reduction claim listed · NSF listing (read October 28, 2026)
Check on Amazon
Basic tier Amazon Basics AMZN-LT1000P-S
NSF/ANSI 42No NSF/ANSI 53No NSF/ANSI 401
Rated capacity 200 gal · No lead reduction claim listed · NSF listing (read October 28, 2026)
Check on Amazon
Basic tier Maxblue MB-LT1000P
NSF/ANSI 42No NSF/ANSI 53No NSF/ANSI 401
Rated capacity 200 gal · No lead reduction claim listed · NSF listing (read October 28, 2026)
Check on Amazon
Basic tier Waterdrop WD-LT1000P
NSF/ANSI 42No NSF/ANSI 53No NSF/ANSI 401
Rated capacity 200 gal · No lead reduction claim listed · NSF listing (read October 28, 2026)
Check on Amazon

Fit note: each replacement above carries the LT1000P number in its own model name, so its seller presents it as a replacement for LT1000P. We did not confirm fit with the replacement makers; confirm with your manual.

Side by side

FilterNSF/ANSI 4253401Lead claimRatedListing
AQUA CREST
AQF-LT1000P-D		YesYesYesYes200 galNSF listing
Amazon Basics
AMZN-LT1000P-P		YesYesYesYes200 galNSF listing
BBY Essential
BE-LGLT1000P531		YesYesYesYes200 galNSF listing
Maxblue
MB-LT1000P-D		YesYesYesYes200 galNSF listing
Waterdrop
WDP-LT1000P		YesYesYesYes200 galNSF listing
AQUA CREST
AQF-LT1000P-P		YesYesNoYes200 galNSF listing
INSIGNIA
NS-LGLT1000P531		YesYesNoYes200 galNSF listing
Maxblue
MB-LT1000P-P		YesYesNoYes200 galNSF listing
Waterdrop
WDS-LT1000P		YesYesNoYes200 galNSF listing
AQUA CREST
AQF-LT1000P		YesNoNoNo200 galNSF listing
Amazon Basics
AMZN-LT1000P-S		YesNoNoNo200 galNSF listing
Maxblue
MB-LT1000P		YesNoNoNo200 galNSF listing
Waterdrop
WD-LT1000P		YesNoNoNo200 galNSF listing

What the tiers mean for LT1000P

Most replacement brands sell the same filter shape in up to three versions with almost the same name. For LT1000P we found 4 basic, 4 mid and 5 top tier models.

  • Basic tier, NSF/ANSI 42 only: listed for aesthetic claims such as chlorine, taste and odor. No health claims such as lead.
  • Mid tier, adds NSF/ANSI 53: health effect claims. Check the listing for the exact contaminants; for these models it includes lead where marked above.
  • Top tier, adds NSF/ANSI 401: a set of emerging compounds such as some medicines and pesticides, each named in the listing.

The model numbers differ by a letter or a suffix, so read the exact number on the box before you buy. NSF 42 vs 53 vs 401 explained.

Which refrigerators use the LT1000P

126 model entries as listed by LG (maker page, read October 28, 2026). Linked models have their own page. From LG's own compatible model search on the LT1000P page.

Show all 126 models
  • LG LRFDC2406D
  • LG LRFDC2406S
  • LG LRFDS3016M
  • LG LRFDS3016S
  • LG LRFGC2706S
  • LG LRFLC2706D
  • LG LRFLC2706S
  • LG LRFLC2716D
  • LG LRFLC2716S
  • LG LRFLS3206S
  • LG LRFLS3216S
  • LG LRFOC2606S
  • LG LRFVC2406D
  • LG LRFVC2406S
  • LG LRFVS3006D
  • LG LRFWS2906D
  • LG LRFWS2906S
  • LG LRFWS2906V
  • LG LRFXC2406S
  • LG LRFXC2416D
  • LG LRFXC2606S
  • LG LRFXS3106S
  • LG LRMDC2306D
  • LG LRMDC2306S
  • LG LRMDS3006D
  • LG LRMDS3006S
  • LG LRMVC2306D
  • LG LRMVC2306S
  • LG LRMVS2806D
  • LG LRMVS2806S
  • LG LRMVS3006D
  • LG LRMWS2906D
  • LG LRMWS2906S
  • LG LRMXC2206D
  • LG LRMXS2806D
  • LG LRMXS3006S
  • LG LRRXC2606S
  • LG LRSDS2706D
  • LG LRSDS2706S
  • LG LRSOC2306D
  • LG LRSOC2306S
  • LG LRSOS2706D
  • LG LRSOS2706S
  • LG LRSVS2706S
  • LG LRSWS2806S
  • LG LRSXC2306S
  • LG LRSXC2306V
  • LG LRSXS2706B
  • LG LRSXS2706S
  • LG LRSXS2706V
  • LG LRSXS2706W
  • LG LRYKC2606D
  • LG LRYKC2606S
  • LG LRYKS3106D
  • LG LRYKS3106S
  • LG LRYXC2606D
  • LG LRYXC2606S
  • LG LRYXS3106D
  • LG LRYXS3106S
  • LG LS27T3230S
  • LG LTCS20020S
  • LG LY24Z6231V
  • LG SKSFD4826P
  • LG SRFB27S3
  • LG SRFB27W3
  • LG SRFVC2416S

Genuine LT1000P specs from the maker

Maker's rated capacity200 gallons
Maker's change interval6 months
Maker's own claim“6 Month / 200 Gallon Capacity”
SourceLG product page, read October 28, 2026

Questions

Is a cheap replacement LT1000P filter as good as genuine?

It depends on the exact model. Of the 13 replacements we found, 4 are listed to NSF/ANSI 42 only. Top tier models such as AQUA CREST AQF-LT1000P-D, Amazon Basics AMZN-LT1000P-P and 3 more are listed to 42, 53 and 401. We could not find a public listing for the genuine filter.

Does the LT1000P filter remove lead?

We could not confirm a lead claim for the genuine filter in a public listing. Among replacements, 9 of 13 list lead reduction.

Where do these certification facts come from?

From the public NSF, IAPMO R&T and WQA listings, searched by the exact model number, with the read date shown. A second, separate lookup confirmed each row before publishing. We never call a filter certified unless the listing names that exact model.

Sources

  1. NSF listing for AQUA CREST AQF-LT1000P-D: https://info.nsf.org/Certified/DWTU/Listings.asp?TradeName=AQF-LT1000P-D&submit3=Search (read October 28, 2026, second check October 28, 2026)
  2. NSF listing for Amazon Basics AMZN-LT1000P-P: https://info.nsf.org/Certified/DWTU/Listings.asp?TradeName=AMZN-LT1000P-P&submit3=Search (read October 28, 2026, second check October 28, 2026)
  3. NSF listing for BBY Essential BE-LGLT1000P531: https://info.nsf.org/Certified/DWTU/Listings.asp?TradeName=BE-LGLT1000P531&submit3=Search (read October 28, 2026, second check October 28, 2026)
  4. NSF listing for Maxblue MB-LT1000P-D: https://info.nsf.org/Certified/DWTU/Listings.asp?TradeName=MB-LT1000P-D&submit3=Search (read October 28, 2026, second check October 28, 2026)
  5. NSF listing for Waterdrop WDP-LT1000P: https://info.nsf.org/Certified/DWTU/Listings.asp?TradeName=WDP-LT1000P&submit3=Search (read October 28, 2026, second check October 28, 2026)
  6. NSF listing for AQUA CREST AQF-LT1000P-P: https://info.nsf.org/Certified/DWTU/Listings.asp?TradeName=AQF-LT1000P-P&submit3=Search (read October 28, 2026, second check October 28, 2026)
  7. NSF listing for INSIGNIA NS-LGLT1000P531: https://info.nsf.org/Certified/DWTU/Listings.asp?TradeName=NS-LGLT1000P531&submit3=Search (read October 28, 2026, second check October 28, 2026)
  8. NSF listing for Maxblue MB-LT1000P-P: https://info.nsf.org/Certified/DWTU/Listings.asp?TradeName=MB-LT1000P-P&submit3=Search (read October 28, 2026, second check October 28, 2026)
  9. NSF listing for Waterdrop WDS-LT1000P: https://info.nsf.org/Certified/DWTU/Listings.asp?TradeName=WDS-LT1000P&submit3=Search (read October 28, 2026, second check October 28, 2026)
  10. NSF listing for AQUA CREST AQF-LT1000P: https://info.nsf.org/Certified/DWTU/Listings.asp?TradeName=AQF-LT1000P&submit3=Search (read October 28, 2026, second check October 28, 2026)
  11. NSF listing for Amazon Basics AMZN-LT1000P-S: https://info.nsf.org/Certified/DWTU/Listings.asp?TradeName=AMZN-LT1000P-S&submit3=Search (read October 28, 2026, second check October 28, 2026)
  12. NSF listing for Maxblue MB-LT1000P: https://info.nsf.org/Certified/DWTU/Listings.asp?TradeName=MB-LT1000P&submit3=Search (read October 28, 2026, second check October 28, 2026)
  13. NSF listing for Waterdrop WD-LT1000P: https://info.nsf.org/Certified/DWTU/Listings.asp?TradeName=WD-LT1000P&submit3=Search (read October 28, 2026, second check October 28, 2026)
  14. NSF search for LT1000P, no listing found: https://info.nsf.org/Certified/DWTU/Listings.asp?TradeName=LT1000P&submit3=Search (read October 28, 2026)
  15. IAPMO search for LT1000P, no listing found: https://pld.iapmo.org/ (read October 28, 2026)
  16. WQA search for LT1000P, no listing found: https://find.wqa.org/find-products (read October 28, 2026)
  17. LG product page: https://www.lg.com/us/appliances-accessories/lg-lt1000p-refrigerator-water-filter (read October 28, 2026)

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