Superior-level filtration: The Culligan Drinking Water Chrome Faucet Mount Water Filtration System reduces 97% of PFOA/PFOS and microplastics for cleaner drinking water. No tools required: Easily install your Culligan faucet mount filtration system directly to your standard aerator faucet in the right or left-handed orientation, no tools necessary. Reduces chlorine: This Culligan faucet water filter reduces chlorine to remove bad taste and odor, for water that's better for you and your taste buds. Premium quality: This advanced faucet mount filtration system is tested and certified by WQA - the global organization dedicated to advancing water quality standards, for drinking water you can feel confident about. Fast and reliable filtration: This Culligan faucet mount water filtration system comes with a faucet water filter replacement that lasts up to 4 months or 400 gal., depending on usage and water conditions.