Faucet-mounted filters are devices that attach directly to the end of a kitchen faucet. They work by using a filtration system to remove impurities from tap water, such as chlorine, lead, and sediment, improving the water's taste and safety. These filters are convenient and easy to install, often requiring no special tools. When you turn on the faucet, water flows through the filter, which can be switched on or off as needed. Many models also include a light indicator to show when the filter needs to be replaced. This makes them a practical choice for households looking to enhance their drinking water quality.