Refrigerator water filters are replaced about twice a year. What to check before buying: the part number your fridge takes, and whether the listing publishes an NSF/ANSI 42 or 53 certification number. Prices are whatever Amazon shows you — we do not reproduce them here. Here are the listings we have by brand.
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This is a third-party compatible filter, not made by LG.
Listed for the LG LT120F fitment. This is the air filter inside the fridge compartment, not the water filter — easy to overlook when you order. We have not tested it.
This is a third-party compatible filter, not made by LG.
Listed as an NSF 42/53 certified replacement for the LG LT800P — check the certification number in the listing. Activated carbon block, twist-and-lock fitting. We have not tested it.
LG is the device this part fits. We have not confirmed who manufactures this listing.
Multi-pack option listed for the same LG LT800P fitment as the single. Certifications are per listing, so look for the NSF number in this one too. We have not tested it.
The most important specification for a refrigerator water filter is NSF/ANSI 53 certification — this covers health-related contaminants including lead and cysts. NSF 42 alone only covers taste and odor. Both certifications together provide comprehensive filtration. Always flush 4 gallons through a new filter before drinking, and reset the filter indicator after installation.
Not finding your model? Search the complete refrigerator directory.
Magnuson-Moss Warranty Act (15 U.S.C. 2301-2312) prohibits manufacturers from voiding your warranty solely for using third-party replacement parts.