PRO+AQUA ELITE GEN2 Three-stage replacement filter set for model PRO-100-E GEN2 Filtration System ONLY. 3 Stages for ultimate filtration protection.Specifically designed to provide unmatched filtration performance for Well Water and outstanding performance with City Water. This replacement filter set for the PRO-100-E GEN2 System will provide safe water for your entire home. This replacement set will remove up to 99% of Chlorine, Water-soluble Lead, Mercury, Nickel, Chromium, and other dissolved metals as well as Iron, Rust, Dirt, Sand, Sulfur, Silt, Turbidity, Aluminum, Copper, Volatile Organic Chemicals (VOC), Cadmium, Cloudiness, Odors and many other contaminants. This filter set is manufactured from safe NSF approved KDF and coconut shell activated carbon to reduce unpleasant taste, odor, chlorine and other contaminants from water. Original OEM replacement filters for the PRO-100-E GEN2 Three Stage Whole House Filtration System. NOT Compatible with standard 4.5" x 20" Systems. Whats in the Box? 1pc FC-19-SED String Wound Sediment Filter. 1pc FC-19-CRK Premium Mix Media Filter. 1pc FC-19-ACB Premium Activated Carbon Filter. Specifications: Stage 1: 5 Microns, Ultimate Sediment Filtration. Stage 2: 5 Microns, Mix Media Heavy Metals and Sulfur Odor Filtration. Stage 3: 5 Micron, Premium Carbon Infused High Flow Filter. ONLY COMPATIBLE WITH THE PRO+AQUA PRO-100-E ELITE GEN2 SYSTEM. NOT COMPATIBLE with standard PRO-100-E system using 4.5"x20" standard filters.Correct replacement filter set for the GEN1 Standard PRO-100-E system is SKU FC-PK-100E.