iSpring F22-75 NSF Certified 3-Year Replacement Filter Pack, For Standard 5-Stage RO Systems, Reduces PFAS, Chlorine, Bad Taste & Odor, 22 PiecesIndividually wrapped 3 year high capacity filter replacement cartridge pack for most standard 5 stage through systems Experience clean, safe, and good tasting water every time you turn on the faucet. Enjoy crystal clear ice cubes, fresher tea and coffee, better tasting foods, healthier baby formula even better than most bottled water 75 gpd reverse osmosis membrane for superior performance, TDS rejection rate up to 97% 22 pieces of 10" X 2. 5"