PUR FM 3700 Advanced Faucet Water Filter - Remove 99.9% of Contaminants, 3-Stage Filtration System, 100,000 Gallon Capacity Specification: * Filtration Modes: 3-Stage (Activated Carbon, Reverse Osmosis, and Ion Exchange) * Capacity: 100,000 Gallons * Flow Rate: 1.5 GPM * Compatible with Most Faucets Experience cleaner, better-tasting water with the PUR FM 3700 Advanced Faucet Water Filter. This 3-stage filtration system removes 99.9% of contaminants, including lead, chlorine, and mercury, to provide a safer and more enjoyable drinking experience. With a capacity of 100,000 gallons and a flow rate of 1.5 GPM, this filter is perfect for households of all sizes. Say goodbye to bad-tasting water and hello to a healthier, more convenient lifestyle.