5 Stage Reverse Osmosis Replacement Filter Bundle (50 Gpd， Universal) by CuZn<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>All filters are NSF Certified &amp; 100% Lead Free， Universal Fit (2.5" x 10" Slimline Series Filters)</li><li>Stage 1: High Quality 5 Micron Sediment Filter</li><li>Stage 2 &amp; Stage 3: 5 Micron Carbon Block Cartridge</li><li>Stage 4: 50 Gallon Per Day Reverse Osmosis Membrane</li><li>Stage 5: Post Membrane Taste &amp; Odor Polishing Cartridge with 1/4" Quick Connect Fittings "Push Fittings" on the Inlet/Outlet. Looking for a Complete New 5 Stage Reverse Osmosis System? Search ASIN#B019N7VG1W</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51xy84a71XL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41rODIrpNAL.jpg" noproxy>