iSpring 10"x2.5" Sediment GAC/ Granular Activated Carbon Combo Filter Cartridge #FPFG15 Sediment and GAC carbon Combo filter cartridge 2.5" x 10" Made of 100% Melt-Blown Polypropylene, 4-layer filtration GAC carbon made from high-quality coconut carbon Removes sediment, chlorine, and bad tastes