Omnipure Inline DI Filter for Water Purification Systems The Omnipure Inline DI Filter K5555-JJ is a replacement component designed for compatible water purification systems. Its compact inline design makes it suitable for filtration setups that require a deionization filter. If you are looking for a post carbon water filter or other inline filtration components, explore the replacement filter options available at AFW Filters to find a product suited to your system. Visit : https://store.afwfilters.com/filter-replacements/inline-filters/omnipure-inline-di-filter-2-5-inch-x-10-inch-k5555-jj/