Environmental Water Systems F.SET.RO4 Replacement Filter Set for RO4 4-Stage Reverse Osmosis System Other Systems NSF Standards 42 and 53

NSF Standards 42 and 53 certified to reduce sediment

These systems help protect plumbing and fixtures while reducing unpleasant taste

(formerly CUNO Incorporated)

THIS IS THE SS-2

Fits AP100 Series Housings and Stainless Steel Housings

Environmental Water Systems F.SET.RO4 Replacement Filter Set for RO4 4-Stage Reverse Osmosis System Other Systems NSF Standards 42 and 53Replacement Filter Set for RO4 Advanced 4 Stage Under Counter Reverse Osmosis System Offering True Protection From Toxic Contaminants. At A Glance Four stage RO4 contains our unique two stages of advanced, high grade carbon filtration with a 5 micron pre sediment filter to improve performance where water is more particulate. High capacity 50 gallon per day reverse osmosis membrane. Pre carbon filtration to protect the membrane from chlorine. Post