Glacier Fresh Replacement for LT800P, ADQ73613401 Refrigerator Water Filter

These are three different filter generations for different LG refrigerator model lines — they are not interchangeable:

LT700P (ADQ36006101) — older LG French door and side-by-side models
LT800P (ADQ73613401) — mid-generation LG models, primarily larger capacity French door and side-by-side units
LT1000P (ADQ747935) — newest generation LG models made after ~2017

Yes — ADQ73613401, ADQ73613401-S, ADQ73613402, ADQ73613402-S, ADQ73613403, ADQ73613407, and ADQ73613408 are all the same LT800P filter under different LG production revision suffixes. The suffix changes reflect minor manufacturing updates, not functional differences. The GlacierFresh GF-800P replaces all of these part numbers interchangeably — you don't need to match the exact suffix.

On LG models that use the LT800P, the filter is typically located in the bottom left of the refrigerator compartment (in the grille area near the floor), unlike the LT700P and LT1000P which are in the upper interior. To replace it: open the filter cover at the base of the fridge, push the old filter in and twist counterclockwise to remove, insert the GlacierFresh GF-800P and twist clockwise until it locks with a click. No tools needed. Run 2 gallons of water through the dispenser to flush before drinking.

Yes — the Kenmore 9490, 46-9490, and 469490 are the Kenmore-branded equivalents of the LG LT800P (ADQ73613401). Kenmore sources many of its refrigerators from LG and rebrands the filters under different part numbers. The GlacierFresh GF-800P is a direct replacement for both LG and Kenmore models using this filter housing — no modifications needed.

Slow flow immediately after a new filter installation is almost always caused by trapped air in the filter housing. This is completely normal and easy to fix: continuously dispense water for 3–5 minutes to purge the air pocket. Also make sure to run and discard at least 2 gallons to flush the new filter. If flow remains slow after flushing, double-check that the filter is fully locked — a partially seated filter significantly restricts water flow. If the issue persists after a proper reinstall, contact our support team.

After installing the new GF-800P, press and hold the "Filter Reset" button on your fridge's control panel or dispenser for 3–5 seconds until the indicator light changes from red to green or turns off. On some LG models that use the LT800P (particularly the LMXS and LSXS series), the reset button may be on the inside control panel rather than the door dispenser. Your fridge does not auto-detect a new filter — you must manually reset it every replacement cycle or the light will remain red indefinitely.

Each certification covers something different and together they provide comprehensive assurance. NSF/ANSI sets the performance and safety standards for contaminant reduction and materials. IAPMO is an accredited independent lab that tests and verifies the filter actually meets those NSF standards — this is the critical third-party verification. ISO certifies the manufacturing facility's quality management system, ensuring consistent production quality batch to batch. A filter with all three certifications means the performance claims are independently verified AND the manufacturing process is stan

Yes, legally and safely. Under the Magnuson-Moss Warranty Act, LG cannot void your refrigerator warranty simply because you used a compatible third-party replacement filter. They would need to prove the filter specifically caused a malfunction — which is extremely unlikely with a properly certified, precision-fit replacement. The GlacierFresh GF-800P is NSF/ANSI and IAPMO certified and engineered to OEM specifications, making it a safe and legally protected choice for warranty-covered LG and Kenmore refrigerators.