The NuvoH2O HOME DUO Replacement Cartridge & Filter 71160 is a brand new set in the original box, designed for whole house water purification. This white plastic cartridge has a capacity of 2 gallons and comes in a pack of 2. It is compatible with multiple NuvoH2O models, providing clean and fresh water for your kitchen or bar needs. This product ensures that your water is filtered efficiently and effectively, making it a reliable choice for maintaining clean and safe water in your home.