A:Answer Hi there, Rick. Thank you for reaching out about your water filter inquiry. We understand your situation and are here to help. For your LG LSXS26366D refrigerator, the correct water filter model is LT800P. As a troubleshooting step, please check that your current water filter is securely installed and free from any obstructions to ensure optimal water flow.
https://www.lg.com/us/refrigerators/lg-lsxs26366d-side-by-side-refrigerator#pdp_specs
If you experience any issues or have further questions, please send us a private message on Social Media @LGUSSupport, and our team will be more than happy to explore possible solutions with you. —Renzo