RO Water Membrane: The Tiny Filter Making a Huge Difference for Your Drinking Water Ever wonder how your RO system delivers such perfectly pure water? The secret lies in its unsung hero: the RO water membrane. This microscopic marvel is the heart of your purification system, ensuring your drinking water is truly clean. What is an RO Membrane? An RO water membrane is a super-fine, semi-permeable barrier with pores so tiny (about 0.0001 microns) that they effectively block almost all impurities. Made typically from thin film composite material, it's designed to let only pure water molecules pass through. How It Works Its M