Stage 3 Carbon Block Filter for under-sink RO filtration drinking water system - NSF certified， 5 micron， 10 inch， 2.5" OD X 1.1" ID X 9-7/8" L (CBF-1025-05)<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>NSF certified to ANSI/NSF Standard 42 for material requirements</li><li>3rd stage premium extruded activated carbon filter</li><li>Absorbs residual chlorine， chloramines， tastes and odors， VOCs， and heavy metals</li><li>Fits most industry standard 10-Inch under-sink filter housings</li><li>5 micron particle retention size</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41UswGoZ92L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41Q5mt02wyL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41-SWRaHVyL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41m5annNojL.jpg" noproxy>