Buyer's GuidePool AccessoriesPool Equipment OrganizersDual Core Cartridges:Mar 6, 2015 Using dual cores and dual media, the Dual Core is one filter doing the job of two. Offering the best of both worlds, cleanest water and long life.Related StoriesPool Equipment OrganizersPleatco AdvancedPool Equipment OrganizersWhy PleatcoPool Equipment OrganizersFilter FlosserContent LibraryDig through our best stories from the magazine, all sorted by category for easy surfing.Read MoreBuyer's GuideFind manufacturers and suppliers in the most extensive searchable database in the industry.Learn More