CULLIGAN US-2-R 2CT 2Stag WTR Cartridge, 2 Count (Pack of 1), White Easy Change 1/4 Turn Cartridges, .5 GPM Flow Rate, Reduces Taste, Odor Chlorine, Reduces Particulate Class 1, Cysts, Lead, Lindane Atrazane, Certified To NSF 42/53, For Use With TV #216-904. Features Provide your family with visibly clean, great-tasting water for drinking, cooking and more FEATURES: Reduces bad tastes and odor along with common contaminants like chlorine, atrazine, cysts, lead, lindane, turbidity, and nominal Class 1 particulates; EZ change replacement filter design COMPATIBILITY: Works with US-2 filtration system FILTER LIFE: Up to 6 months, depending on usage and filtration load CERTIFICATION: Tested and certified by IAPMO against NSF/ANSI 372 for low lead requirement, NSF/ANSI 42 for the reduction of aesthetic chlorine taste and odor and nominal particulate class I, and NSF/ANSI 53 for cysts, and lead USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.