Culligan US-DC3 Under Sink Direct Connect Premium Lead Filtration System, White Direct connect under-sink system certified to reduce lead up to 99% without sacrificing cold water flow rate at the sink. Flow rate of 1. 5 GPM. Quick "twist-lock" cartridge replacement, compatible with Direct Connect line of products (US-DC1-R and US-DC2-R) Extended capacity cartridge life; 4, 750 gallons or 12-month Features Under sink water filtration system providing cleaner filtered water Aids in the reduction of bad taste, odor, chlorine, lead, and microbial cysts Use replacement cartridge Culligan model US-DC3-R Capacity = 4, 750 gallons or 12-months Flow rate = 1. 5 gpm 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.