COMPATIBLE MODEL:RESMO R3800 Reverse Osmosis System. Extended Service Life: Delivers up to 24 months or 800 gallons of clean, filtered water. For optimal performance, replace the filter according to the recommended cycle. Premium Filtration Materials: Made with high-quality natural activated carbon block and sediment PP membrane Quick and Easy Replacement: Filter changes are hassle-free—just twist and replace within 3 seconds, no tools needed. COMPATIBLE MODEL:RESMO R3800 Reverse Osmosis System. Extended Service Life: Delivers up to 24 months or 800 gallons of clean, filtered water. For optimal performance, replace the filter according to the recommended cycle. Premium Filtration Materials: Made with high-quality natural activated carbon block and sediment PP membrane Quick and Easy Replacement: Filter changes are hassle-free—just twist and replace within 3 seconds, no tools needed.