Watts Premier Under Sink Replacement Membrane Filter

24 GPD (Gallons Per Day) Membrane Filter. Compatible with the Premier Standard Reverse Osmosis Systems. This semi permeable membrane effectively reduces TDS and sodium as well as a wide range of contaminants such as Arsenic, Lead, Percholate, Chromium, Copper, Radium and Protozoan Cysts including Giardia and Cryptosporidium. The heart of your Reverse Osmosis system reducing impurities down to 1/10,000 of a micron.