Vertex PWC-3500 RO Version PureWaterCooler Filter Pack The 3-stage filter system pack uses disposable, NSF listed, inline filters with Quick connect fittings for simple, sanitary, no-mess filter changes. Stage-1 - Sediment Filter - 5-micron poly-spun pre-filter removes suspended particles, rust, and pipe scale down to 5 microns (about 1/10 the size of a human hair). Stage-2 - Carbon Filter - 10-micron Activated Carbon Filter. Stage 3 - Final stage GAC Post filter - Granular Activated Carbon (GAC) filter removes chlorine taste and odor plus other common earthy, fishy, musty tastes and odors. Used in the following Vertex Bottleless Water Coolers: PWC-3500 Bottleless Water Coolers with the RO Option **Replace filters every 6 months. Filter change instructions included.
