APEC FILTER-SET US MADE Double Capacity Replacement Pre-Filter Set For ULTIMATE Series Reverse Osmosis Water Filter System Stage 1， 2&3</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Apec ultimate high capacity pre-filter set is USA made and built to last 2X longer than other brands</li><li>Includes (1) sediment and (2) Carbon block filters to protect and extend the life of the ro system</li><li>1St stage polypropylene sediment filter to remove dust， particles， and rust</li><li>2nd & 3Rd stage extruded Carbon block filters to remove chlorine， taste & odor</li><li>High performance replacement filters are compatible with all standard sized under counter ro systems</li><li>Compatible with APEC RO-45， RO-90， RO-PH90， RO-PERM， RO-PUMP， WFS-1000 and most  industry standard sized 10" x 2.5" filter housing</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/51spcLHh4kL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/51BKLt9pS6L.jpg' noproxy></br>