**HIGH QUALITY MATERIALS: Membrane Solutions activated carbon filter is made of high quality coconut shell carbon. Outer layer has food grade plastic net wrapping PP non-woven fabric, which can last up to six months. **FOOD GRADE EFFICIENCY FILTRATION: Designed with 10″ x 2.5″ slim carbon block filter, filtration rating is 5 micron, filters up to 15,000 gallons, effectively removes 97% sediment, chlorine, organic chemicals and odor, etc. **EASY INSTALLATION: Universal 10 inch Cartridge, fits most standard under-sink RO system, whole house 10″ standard filter housing and any 10” water filtration unit. Drop-in designed for easy and quick filter change, no tools required.