Green Label Universal 10 inch Replacement Filter Set 5 micron Standard Multi-Stage Reverse Osmosis Water Filtration Systems: 1 PP Sediment, 1 GAC, 1 CTO, 1 Polishing Filters (4 Filters) NSF Certified!Category: Standard Reverse OsmosisYOU ARE WHAT YOU DRINK Life on Earth began in water and evolved from it. The cells inside your body range from 70% to 80% in water content. Water is the biological medium here on Earth and the supporter of all life forms. However, regular tap water stopped being clean a long time ago. What can you do? Nowadays, buying a water filter is enough to no longer worry about the purity of the water you’re drinking. Reverse Osmosis system is the most effective way to purify your tap water. Making sure to regularly replace your water filtration system assures that the system continues to function properly. Our aim is to make high quality drinking water accessible to all households. PP Sediment Filter • 1st Stage in Reverse Osmosis systems 5 Micron Gradient Density, multi-layer, PP Sediment Filter Cartridge This polypropylene water filter reduces sediment, dirt, sand, silt, rust, limescale, and other impurities in your water. Constructed of food grade melt blown polypropylene fibers Meets all NSF (National Sanitation Foundation) relevant Standards Standard dimensions: 10 inch x 2.5 inch Replace 2-3 times per year, depending on the water quality and usage GAC Granular Activated Carbon Filter 2nd Stage in Reverse Osmosis systems 5 Micron gradient density, multi-layer, Granular Activated Carbon Filter Cartridge GAC filters are highly efficient in reducing chlorine taste and odor, as well as many other organic chemicals and volatile organic compounds Constructed of coconut shell granulated activated carbon Meets all NSF (National Sanitation Foundation) relevant Standards Standard dimensions: 10 inch x 2.5 inch Replace 2-3 times per year, depending on water quality and usage CTO Carbon Block Filter • 3rd Stage in Reverse Osmosis systems 5 Micron gradient density, multi-layer, Post Carbon Filter Cartridge CTO filter removes any remaining chlorine taste and odors Post Carbon Filters are made with coconut shell based carbon which creates, what is believed to be, sweeter tasting waterMeets all NSF (National Sanitation Foundation) relevant standards Standard dimensions: 10 inch x 2.5 inch Replace 2-3 times per year, depending on water quality and usage Membrane and Polishing Filter 4th and 5th Stages in Reverse Osmosis systems Polishing Filter Removes chlorine taste and odors to improve the quality of drinking waterReplace 1 time per year, depending on water quality and usage Membrane Filter Increases pH level of water Also adds back healthy minerals which are removed durind the filtration process Please Note! We do not sell the whole system, but only provide replacement filters.