The 20 x 4.5 inch EP-20BB Pentek Comparable carbon filter replacement kit by Tier1 includes everything you need for filter change maintenance. The exclusive kit includes a 5 micron carbon EP-20BB Pentek Comparable filter, replacement O-ring, and lubricant packet to make your next filter change a breeze. The experts at Tier1 have worked hard to ensure this kit contains the filter and component you need to finish the job. Water taste and quality is critical business, the EP-20BB Pentek comparable carbon filter by Tier1 reduces chlorine taste and odor and more while it captures sediment as small as 5 microns. The replacement kit installs quickly and easily, order today!