New old stock, never opened. 4-Stage professional grade set, includes all you need (Filters, Tank, and Spout). Stage 1: 5-Micron Sediment Filter to trap dirt, rust, sand, silt, and suspended particles. Stage 2: High Capacity Carbon Block Technology to reduce chlorine taste and odor and more.
Stage 3: High Production 50gpd Thin Film Membrane Reduces Contaminants as small as 1/10,000 of a micron. Stage 4: Final High Performance Carbon Block to enhance the quality and taste of the water. See photos carefully for more.