*** open box but product is new The SimPure WP2-400/T1-400 ALK Alkaline pH+ Water Filter Replacement Cartridges are high-end products designed to remove chlorine, tastes, and odors from water through an 8-stage filtration process. These cartridges have a capacity of 400 gallons and are suitable for both commercial and household use. The filter cartridges feature a snap filter design for easy and convenient replacement in just 3 seconds. Made of plastic, the cartridges are compatible with SimPure brand products and offer a 1-year manufacturer warranty. With an item height of 11.2 inches and a width of 3.5 inches, these cartridges are designed for efficient filtration of municipal potable or well water.