Which faucet-mounted water filter has the largest capacity?

This faucet-mounted system provides filtered water on demand and includes an electronic filter replacement indicator. It removes 99% of lead and filters more than 60 contaminants, making it suitable for households wanting convenient tap filtration without pitcher refills.

The Culligan FM-25 is a polished-chrome faucet-mounted filter with a 0.5 GPM flow rate and a cartridge rated for up to 200 gallons or 2 months. It reduces chlorine, lead, sediment, turbidity, atrazine, lindane, bad taste, and odor, making it suitable for households wanting convenient point-of-use filtration with minimal installation effort.

The Culligan FM-15A is a faucet-mounted carbon block filter that reduces chlorine, lead, sediment, and other common tap-water impurities. It provides a 0.5 gpm flow rate, filters up to 200 gallons, and installs without tools, making it suitable for households seeking convenient drinking-water filtration.

The Brita Basic SAFF-100 is a faucet-mounted water filter with a 100-gallon filter capacity, filter-change indicator, and easy tool-free installation on most standard faucets. It suits households seeking convenient on-demand filtered water and certified reduction of chlorine, lead, and other contaminants.

This horizontal faucet-mounted filter uses a MineralCore filter to reduce lead, mercury, pesticides, pharmaceuticals, and more than 70 contaminants. It includes a filter-change indicator light and suits households wanting convenient filtered water directly from a standard faucet.

This Brita Elite faucet-mounted system attaches to your sink faucet and includes two 100-gallon filters. It features a filter change indicator and filtered and unfiltered water settings for convenience. It's intended for improving taste and reducing contaminants like lead and chlorine from tap water.

The iSpring DF2-Clear is a faucet-mounted carbon filter with a clear BPA-free housing that reduces chlorine, chloramine, lead, mercury, lindane, atrazine, and other contaminants. It provides up to 1.5 GPM and 500 gallons of filtered water, making it suitable for standard kitchen, bathroom, or RV faucets.

The ZeroWater Extremelife is a carbon-fiber faucet-mounted filter with a 400-gallon capacity, filter-life indicator, and reduction claims for lead, chlorine, and PFOA/PFOS. It suits households wanting long-lasting filtered water without countertop equipment or professional installation, provided they have a compatible standard faucet.

This faucet-mounted system provides filtered water directly from most standard faucets and includes a filter rated for 100 gallons. It suits households seeking convenient lead and contaminant reduction without installing an under-sink system.