APEC MEM-ES-50 50 GPD Membrane Replacement Filter For Reverse Osmosis System<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Use as Stage-4 on APEC ROES-50 Systems</li><li>Industry Standard Sized Membrane， use with reverse osmosis systems with 30-50 GPD</li><li>Fast response with no break-in time required</li><li>Effective under varying water conditions with wide operating limits</li><li>High contaminant rejection RO element</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31jYPX00%2ByL.jpg" noproxy>