Dow Filmtec TW30-1812-24 Reverse Osmosis Membrane</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Rated at 50 psi and purifies about 20% more water than elements rated at 60 psi</li><li>Shipped dry for convenient and a long shelf life</li><li>Free Chlorine Tolerance: <0.1 ppm</li></ul></div></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/31ELXa5LA2L.jpg' noproxy></br>