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The best LG refrigerator water filter replacement keeps the certifications that matter while cutting the cost of LG’s genuine cartridge. For LG’s popular LT1000P housing, a few replacements list the same NSF 42, 53 and 401 standards as LG’s own filter, while budget combo packs focus on taste and odor and add air filters.
We compared LG replacement filters on Amazon on listed NSF/ANSI certifications, capacity, value per filter and whether they include LT120F air filters.
Quick Answer: The Best LG Refrigerator Water Filter Replacement
- Best Overall ReplacementAmazon Basics LT1000P 3-Pack
- Best for LeadWaterdrop Plus LT1000PC
- Genuine BenchmarkLG LT1000P (Genuine)
- Best Budget ComboPUREPLUS LT1000P Combo
- Best Value ComboGlacier Fresh LT1000PC Combo
- Best for Older LG FridgesWaterdrop Plus LT600P
The Amazon Basics LT1000P three-pack is the best LG refrigerator water filter replacement because it lists NSF 401, 53, 42 and 372 at a lower cost per filter. Waterdrop Plus adds certified 99.6% lead reduction, and Glacier Fresh or PUREPLUS combo packs are best on a tight budget.
Best LG Refrigerator Water Filter Replacement Comparison Table
| Product | Best For | Type | Key Feature | Buy |
|---|---|---|---|---|
| Amazon Basics LT1000P 3-Pack | Best Overall Replacement | NSF 401/53/42 generic for LG | NSF 401, 53, 42, 372 | Check Price |
| Waterdrop Plus LT1000PC | Best for Lead | NSF 401/53/42 generic for LG | 99.6% lead reduction | Check Price |
| LG LT1000P (Genuine) | Genuine Benchmark | OEM LG filter with NSF 401 | NSF 42, 53, 401 | Check Price |
| PUREPLUS LT1000P Combo | Best Budget Combo | Budget LG combo pack | 3 water + 3 air | Check Price |
| Glacier Fresh LT1000PC Combo | Best Value Combo | Budget LG water and air filter combo | Tested to NSF 42 | Check Price |
| Waterdrop Plus LT600P | Best for Older LG Fridges | NSF 401/53 generic for older LG | LT600P, NSF 401/53 | Check Price |
The 6 Filters We Recommend
We include LG’s genuine LT1000P as a benchmark so you can compare what you give up with each replacement.
1. Amazon Basics Replacement LG LT1000P Water Filter, 3 Pack
1. Amazon Basics’ LT1000P three-pack matches LG’s certifications at a lower price per filter.
👍 Pros & Cons
Pros
- Same NSF standards as the OEM
- Three filters
- Low cost per filter
- Lead-free materials
Cons
- Not LG-branded
- Fit can vary
- Newer listing
📄 Detailed Review
- Replaces: LG LT1000P
- Certifications: NSF/ANSI 401, 53, 42 and 372
- Capacity: 200 gallons each
- Media: Coconut shell carbon block
- Count: 3 filters
- Reduces: Select heavy metals, VOCs, trace pharmaceuticals (listing)
Amazon Basics’ LT1000P replacement is certified to NSF/ANSI 401, 53, 42 and 372, matching the standards LG lists for its genuine filter, in a three-pack.
Its coconut carbon block reduces select heavy metals, VOCs and trace pharmaceuticals, according to the listing.
2. Waterdrop Plus LT1000PC Replacement for LG LT1000P
2. Waterdrop Plus LT1000PC is certified for 99.6% lead reduction under NSF 53.
👍 Pros & Cons
Pros
- Certified for lead
- NSF 401 emerging contaminants
- Lower cost than OEM
- Established brand
Cons
- PFAS claim is from brand testing
- Generic fit
- Fewer reviews than OEM
📄 Detailed Review
- Replaces: LG LT1000P, ADQ74793501, Kenmore 46-9980
- Certifications: NSF/ANSI 401, 53, 42 and 372
- Lead: 99.6% reduction (NSF 53)
- PFOA/PFOS: Reduction per brand testing (not NSF 53 certified for PFAS)
- Size: 1.97 x 1.97 x 6.97 inches
- Media: Coconut carbon block
Waterdrop’s Plus filter for LG LT1000P housings is certified to NSF 401, 53, 42 and 372, including 99.6% lead reduction, per the listing. Waterdrop also says testing showed PFOA and PFOS reduction.
Also certified to NSF 401 and reports PFOA/PFOS reduction from brand testing.
3. LG LT1000P Genuine Refrigerator Water Filter
3. LG’s own LT1000P is the fit-guaranteed choice.
👍 Pros & Cons
Pros
- NSF 42, 53 and 401 certified
- Guaranteed fit
- Reduces emerging contaminants
- Huge review base
Cons
- Pricey per filter
- 200-gallon life
- Fits LT1000P housings only
📄 Detailed Review
- Part numbers: LT1000P, ADQ74793501
- Certifications: NSF 42, 53 and 401
- Capacity: 200 gallons / 6 months
- Reduces: Lead, cysts, asbestos, pesticides and more (LG)
- Fit: Many LG French door models
- Reviews: 36,000+ ratings
LG’s LT1000P is certified to NSF 42, 53 and 401, meaning it is tested for taste and odor, health contaminants such as lead and cysts, and some emerging contaminants. It lasts six months or 200 gallons.
Covered by LG’s warranty statement.
4. PUREPLUS ADQ747935 Water Filter + LT120F Air Filter, 3 Combo
4. PUREPLUS includes three water filters and three LT120F air filters.
👍 Pros & Cons
Pros
- Lowest cost per filter
- Air filters included
- IAPMO certified
- Large review base
Cons
- Aesthetic certification only
- Not for lead
- Generic fit
📄 Detailed Review
- Replaces: LG LT1000P (ADQ747935) and LT120F
- Certifications: NSF/ANSI 42 and 372 by IAPMO
- Chlorine: 99% reduction (brand)
- Count: 3 water + 3 air
- Other: REACH, CSA, BPA free
- Life: About 6 months
PUREPLUS’ combo for LG fridges includes three water filters certified to NSF 42 and 372 by IAPMO plus three air filters.
NSF 42 and 372 by IAPMO.
5. GLACIER FRESH LT1000PC Water Filter + LT120F Air Filter, 3 + 3
5. Glacier Fresh’s combo pack is a low-cost way to refresh water and air filters.
👍 Pros & Cons
Pros
- Includes air filters
- Very low cost
- Large review base
- Easy swap
Cons
- NSF 42 only
- Not for lead
- Generic
📄 Detailed Review
- Replaces: LG LT1000P/PC and LT120F air filter
- Standard: Tested to NSF 42
- Chlorine: 97.9% reduction (lab tested)
- Count: 3 water + 3 air filters
- Life: 6 months or 200 gallons
- Media: Coconut carbon
Glacier Fresh pairs three LT1000P-style water filters with three LT120F air filters. The water filters are tested to NSF 42 for chlorine, taste and odor.
Taste and odor focus.
6. Waterdrop Plus 5231JA2002A Replacement for LG LT600P
6. Waterdrop Plus 5231JA2002A fits older LT600P housings.
👍 Pros & Cons
Pros
- NSF 53 and 401
- Good for older LG fridges
- Lower cost than OEM
- Established brand
Cons
- Older housing only
- Generic
- Check fit carefully
📄 Detailed Review
- Replaces: LG 5231JA2002A / LT600P
- Certifications: NSF/ANSI 401, 53, 42 and 372
- Reduces: 35 substances (brand)
- Media: Coconut carbon block
- Life: About 6 months
- Fit: Older LG side-by-side models
Waterdrop’s Plus filter for the older LG 5231JA2002A (LT600P) cartridge is certified to NSF 401, 53, 42 and 372.
Four NSF/ANSI standards listed.
How We Chose the Best LG Refrigerator Water Filter Replacement
To choose the best lg refrigerator water filter replacement, we compared filters sold on Amazon in the U.S. on exact part-number fit, NSF/ANSI certifications listed by each brand (42 for taste and odor, 53 for health contaminants such as lead, 401 for emerging contaminants), rated capacity and replacement interval, and owner reviews for leaks, poor fit and slow flow. We separate certified claims from a brand’s own lab testing, and we note that most refrigerator filters do not remove fluoride.
We checked certification claims against the standards published by NSF International and the EPA’s guidance on lead in drinking water, and we encourage readers to look up a filter’s model number in NSF’s or IAPMO’s online listings. Our full process is explained on our How We Test page. We do not list prices or star ratings because they change daily.
How to Choose the Best LG Refrigerator Water Filter Replacement
Match LT1000P vs other housings
Most replacements target the LT1000P; older fridges use LT600P, LT700P or LT800P.
Keep NSF 53 if you need it
Budget packs often list NSF 42 only. For lead, choose NSF 53.
Air filter combos
If your LG has an LT120F fresh-air filter, combo packs save buying it separately.
Value math
Compare price per filter and per gallon, not per pack.
Warranty note
LG says third-party filters are not covered under its warranty.
Tips for Getting the Most From Your Filter
- Flush after install. A few gallons.
- Check for drips. Around the housing.
- Mark the date. On the filter.
- Change air filters too. Every six months.
Below are common questions readers ask about choosing the best lg refrigerator water filter replacement.
Frequently Asked Questions
What is the best LG refrigerator water filter replacement?
Amazon Basics’ LT1000P three-pack for certifications and value.
Are LG replacements certified for lead?
Some are, such as Waterdrop Plus with NSF 53; many budget packs are not.
Do replacements fit LG ThinQ fridges?
Many LT1000P replacements list ThinQ models; check the compatibility list.
How often should I replace it?
About every six months or 200 gallons.
Final Verdict
The best LG refrigerator water filter replacement is the Amazon Basics LT1000P three-pack, with Waterdrop Plus for certified lead reduction and PUREPLUS or Glacier Fresh combos for tight budgets. Check certifications before choosing your best LG refrigerator water filter replacement.
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