The Micron MT-RO50 Reverse Osmosis membrane filter is compatible with the RO-MQ3 MQ4 & MQ5, MWF-ROC-302, MWF-ROC-801A systems, its quick-change design makes replacing your filter cartridge as simple as “lift, twist, pull, change”. MT-RO50 utilizes an ultra-fine membrane to effectively filter down to 0.0001 micron. This premium filter removes 98% of all dissolved impurities, heavy metals, salts, viruses, bacteria, cysts, chlorine, fluoride, taste, odour and chemicals from your water, resulting in pure and safe water for your family Compatible with:RO-MQ3, MQ4, MQ5, MWF-ROC-302, MWF-ROC-801A Systems Replacement Instructions: Turn off your tap under the sink using the isolation valve. Open faucet to de-pressurise the system. Unscrew the filter by lifting to 90 degrees and turning anti-clockwise,then pull to release. Remove the old filter and discard it. Insert new filter into inlet and turn clockwise until it “clicks” into place. Flush the system for 2-3 minutes until water is clear.