The replacement filter set for the FSHS Puromax PC-4 Reverse Osmosis System consists of 3 filters:
(1) 5 Micron Sediment Cartridge
(1)10 Micron Carbon Filter
(1)10” GAC Inline
For best tasting water, the filters should be changed out once per year. The replacement membrane should be changed out only once every three years. Click water to purchase membrane.