As an Amazon Associate we earn from qualifying purchases. Commissions never affect our picks. Read our affiliate disclaimer.
The best LG refrigerator water filter depends on which housing your LG fridge uses. Most newer LG French door models take the LT1000P, while others use the LT800P, LT700P or older LT600P. LG’s genuine filters are certified to NSF standards for taste, health contaminants and, on the LT1000P, emerging contaminants, which makes them a strong default choice.
We compared genuine LG filters and certified replacements on Amazon on part-number fit, the NSF/ANSI standards each brand lists, capacity and owner feedback.
Quick Answer: The Best LG Refrigerator Water Filter
- Best OverallLG LT1000P (Genuine)
- Best LT1000P AlternativeAmazon Basics LT1000P 3-Pack
- Best Brand-Name AlternativeWaterdrop Plus LT1000PC
- Best for LT800P FridgesLG LT800P (Genuine)
- Best for LT700P FridgesLG LT700P (Genuine)
- Best for Older LT600PWaterdrop Plus LT600P
The genuine LG LT1000P is the best LG refrigerator water filter for most newer LG fridges, certified to NSF 42, 53 and 401. If you want to spend less, the Amazon Basics and Waterdrop Plus replacements list the same three NSF standards.
Best LG Refrigerator Water Filter Comparison Table
| Product | Best For | Type | Key Feature | Buy |
|---|---|---|---|---|
| LG LT1000P (Genuine) | Best Overall | OEM LG filter with NSF 401 | NSF 42, 53, 401 | Check Price |
| Amazon Basics LT1000P 3-Pack | Best LT1000P Alternative | NSF 401/53/42 generic for LG | NSF 401, 53, 42, 372 | Check Price |
| Waterdrop Plus LT1000PC | Best Brand-Name Alternative | NSF 401/53/42 generic for LG | 99.6% lead (NSF 53) | Check Price |
| LG LT800P (Genuine) | Best for LT800P Fridges | OEM LG filter | NSF 42, 53 | Check Price |
| LG LT700P (Genuine) | Best for LT700P Fridges | OEM LG filter | Lead and mercury | Check Price |
| Waterdrop Plus LT600P | Best for Older LT600P | NSF 401/53 generic for older LG | NSF 401, 53 | Check Price |
The 6 Filters We Recommend
LG filters last about six months or 200 gallons. Check your fridge’s manual or the old filter for the exact part number before ordering.
1. LG LT1000P Genuine Refrigerator Water Filter
1. LG’s genuine LT1000P fits most current LG French door fridges and carries three NSF certifications.
👍 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.
It is rated for 200 gallons or six months and reduces lead, cysts, asbestos and more, according to LG. With over 36,000 ratings, it is the most proven option for LT1000P housings.
2. Amazon Basics Replacement LG LT1000P Water Filter, 3 Pack
2. Amazon Basics’ LT1000P three-pack lists the same NSF standards as the genuine 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.
Coconut shell carbon block, lower cost per filter.
3. Waterdrop Plus LT1000PC Replacement for LG LT1000P
3. Waterdrop Plus LT1000PC is certified for lead and emerging contaminants.
👍 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.
Brand testing also shows PFOA/PFOS reduction.
4. LG LT800P Genuine Refrigerator Water Filter
4. LG’s genuine LT800P suits models with that compact housing.
👍 Pros & Cons
Pros
- NSF 53 health claims
- Genuine fit
- Compact
- Trusted OEM
Cons
- No NSF 401
- Pricier than generics
- Limited to LT800P models
📄 Detailed Review
- Part numbers: LT800P, ADQ73613401
- Certifications: NSF 42 and 53
- Capacity: 200 gallons / 6 months
- Size: 1.9 x 1.9 x 7 inches
- Fit: LG models with LT800P housing
- Reviews: 8,000+ ratings
LG’s LT800P is the genuine filter for LG refrigerators with the LT800P housing, certified to NSF 42 and 53 for taste, odor and health-related contaminants.
200 gallons or six months.
5. LG LT700P Genuine Refrigerator Water Filter
5. LG’s genuine LT700P reduces lead, mercury, asbestos and benzene.
👍 Pros & Cons
Pros
- Reduces lead and mercury
- Genuine fit
- NSF 42 and 53
- Easy install
Cons
- No NSF 401
- Older housing style
- Pricier than generics
📄 Detailed Review
- Part numbers: LT700P, ADQ36006101
- Certifications: NSF 42 and 53
- Reduces: Lead, mercury, asbestos, benzene (LG)
- Capacity: 200 gallons / 6 months
- Fit: LG models with LT700P housing
- Reviews: 12,000+ ratings
The LT700P is LG’s genuine filter for refrigerators with the LT700P housing. LG says it reduces lead, mercury, asbestos and benzene, and it is certified to NSF 42 and 53.
NSF 42 and 53.
6. Waterdrop Plus 5231JA2002A Replacement for LG LT600P
6. Waterdrop Plus 5231JA2002A fits older LG side-by-sides.
👍 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.
Certified to four NSF/ANSI standards.
How We Chose the Best LG Refrigerator Water Filter
To choose the best lg refrigerator water filter, 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
Identify the housing
Look for LT1000P, LT800P, LT700P or LT600P on the old filter or in the manual.
Genuine LG advantages
LG says only genuine filters guarantee fit and are covered under LG’s warranty.
Certifications matter
NSF 53 covers health contaminants like lead; NSF 401 covers emerging contaminants such as some pharmaceuticals.
Capacity
LG rates its filters for 200 gallons or about six months.
Combo packs
Some packs include LT120F air filters, which are useful if your fridge has a fresh-air filter.
Tips for Getting the Most From Your Filter
- Note the install date. Six-month reminder.
- Flush a few gallons. After installing.
- Reset the filter indicator. Per your manual.
- Store spares dry. In original packaging.
Below are common questions readers ask about choosing the best lg refrigerator water filter.
Frequently Asked Questions
Which LG water filter do I need?
Match the part number on your current filter; most newer LG French door models use the LT1000P.
Is the genuine LT1000P worth it?
Yes if you want guaranteed fit and NSF 42, 53 and 401 certification; certified generics are cheaper.
How long does an LG filter last?
About six months or 200 gallons.
Does the best LG refrigerator water filter remove fluoride?
No; standard carbon refrigerator filters are not designed to remove fluoride.
Final Verdict
The best LG refrigerator water filter for most owners is the genuine LT1000P, with Amazon Basics and Waterdrop Plus as certified lower-cost alternatives. Match your housing first to find the best LG refrigerator water filter for your fridge.
Related Guides
More refrigerator research from Best Refrigerator Deals:
Prices and availability change often. Check the retailer listing for the current price, warranty and exact dimensions before you buy.
