Reverse Osmosis Membrane with Built-In Check Valve
This semi-permeable membrane is the core filtration element in Watts Premier residential RO systems, reducing dissolved solids and contaminants down to 0.0001 micron. It targets a wide range of inorganic compounds including arsenic, lead, perchlorate, chromium, copper, radium, and protozoan cysts like Giardia and Cryptosporidium.
Reverse Osmosis Filtration Process
Feed Water Entry
Pressurized water from pre-filters enters the membrane housing and contacts the semi-permeable membrane surface.
Molecular Filtration
The membrane separates pure water molecules from dissolved solids, contaminants, and TDS at 1/10,000 of a micron. Rejected contaminants are routed to drain through the flow restrictor.
Built-In Check Valve
Integrated check valve prevents backflow contamination and maintains pressure integrity in the system. Permeate water flows forward to the storage tank.
System Applications
This membrane is designed for Watts Premier residential reverse osmosis systems including the FMRO4-MAN, WP-5, WP-4V, and WP4-V models. Compatible with systems using the newer in-line flow restrictor design, which allows for cleaning and reuse rather than replacement with each membrane change. Membrane service life ranges from 2 to 5 years depending on local water conditions, daily usage volume, and pre-filter maintenance schedules. Models 560014, 560016, 560018, 560020, and 560022.
