The Waterdrop TSB-CM under sink water filter system is specially designed to reduce chloramine in areas like California, Florida, and Washington, D.C., where it is commonly used in tap water treatment. Certified to NSF/ANSI 42, it uses a catalytic carbon block and a three-stage filtration process to effectively reduce chloramine, chlorine, fluoride, heavy metals, turbidity, rust, and more while retaining beneficial minerals. Built with a durable, zero-leak design, it has long-lasting filters with lifespans of up to 12 months, saving replacement costs. The system comes with a brushed nickel faucet, fits 3/8" and 1/2" cold water tubes, and allows easy DIY installation in 3 minutes and 3-second filter replacement. Designed for municipal tap water only, it does not reduce TDS and is not suitable for well or hot water. | Waterdrop | | TSB-CM Under Sink Water Filter System Extra WD-10PP Water Filter | Black | Best Buy