Reverse Osmosis Water Systems For A Quality Life.

Outstanding Rainsoft Ultrefiner compatible 10 gallons per day membrane. Made in the United States. Should be installed in system model # 9590, 9564, 9593, UF-10, 21173, 9393, 9594. Typically changed every 3rd year. Sometimes sooner depending on your usage of water. In stock and ready to ship. Check out our other filters for your system.