Premier 1R-1Y-1B-1G RO-Pure Push Button Replacement Filter Kit by Watts Premier

(1) - 5 Micron Sediment Filter - reduces dirt, silt and rust which affect the taste and appearance of your water. (1) - 5 Micron Carbon pre-filter - made of high quality activated carbon. It reduces chlorine taste and odors, also conditions the water before it is treated by the reverse osmosis membrane. (1) - 5-Micron Carbon Post Filter - made of high-quality activated carbon to reduce chlorine taste and odors. (1) - 50 GPD Membrane - This semi permeable membrane reduces a wide range of contaminants such as Arsenic, Lead, Nitrates, Percholate, Chromium, Copper, Diss Certifications: Certified to NSF/ANSI 372 Lead Free Certified to NSF/ANSI 58 Certified Reverse Osmosis Units, Weight: 2.9 Pounds, Manufacturer: Watts