10" inch Water Filters are industry standard worldwide. This is the most common water filter size found on the market today. Featuring the largest range to suit almost all water filter appliactions including reverse osmosis purification systems, under sink water filters, commercial water filters, under sink boiling systems, free standing coolers, under sink chillers and much more. Major brands include Pentek, HydROtwist, Matrikx, Omnipure, Everpure, Multi-Pure, and much more. They include sedimnet water filters, ceramic water filters, GAC Carbon filters and more.