GE Osmonics Desal TFM-18 Reverse Osmosis Membrane<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Drinking water filtered by reverse osmosis provides a superior quality of purity right from the tap</li><li>A replacement membrance offering 18 gallons of high quality drinking water per day</li><li>Be sure to match the correct flow rate of the membrane with the flow rate of your RO system， for peak efficiency</li><li>Great return on your investment: replace the TFM-18 membrane approximately every 2 years， depending on water quality and your usage</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31kX8Jo7GIL.jpg" noproxy>