Fitment： Perfect Compatibility: Our Upgraded 100186 Replacement Filter is fully compatible with 100185, 100186, 100187, 100188, 100189, 110720, 118384 &100186 water filter systems，ensuring optimal performance for clean, safe drinking water，Ensure optimal efficiency and bring you clean, safe water for your home Easy Installation: Upgraded 6-in-1 100186 water filter Replacement Kit Easily remove old, dirty filters without any tools, then replace and re-fasten the cover, it is recommended to replace the filters every 3-6 months for optimal filtration, depending on the frequency of use and environmental conditions, Detailed instructions are included making maintenance simple and stress-free .