Aries (AF-10-2115-BB) 10"x4.5" Big Blue1.5 LB KDF-55-GAC FilterThe Aries AF 10 2115 BB combines 1. 5 pounds of KDF 55 media with granular activated carbon in a 10 inch by 4. 5 inch Big Blue cartridge designed for whole house heavy metal reduction and chlorine removal. This dual media specialty filter from Aries Filter Works targets lead, mercury, iron, and other dissolved metals while simultaneously reducing chlorine, taste, and odor. SPECIFICATIONS Aries AF 10 2115 BB Filter Cartridge Model Number AF 10 2115 BB