iFilters Compatible Fit Frescapure 4000 4500 5000 6000 Water Filter Replacement For treating cysts, lead, VOCs, MTBE, asbestos, lindane, atrazine, mercury, particulates, chloramine, chlorine, taste and odor Easy to Install Long Lasting 750 Gallons or 12 months Made from High Purity Coconut Shell Activated Carbon Compatible with Royal Prestige Infinity Lumina, WF0705, FRESCAPURE 4000, 4500, 5000, 5500, 6000