While home tap water may look clean, lead and other contaminants can get into your water through leaching lead service lines or from lead contained in household plumbing. For cleaner water, remember to change your PUR water filter. This easy-to-change PUR faucet mount water filter fits in all PUR water filtration systems. A compatible filter does not mean comparable! PUR RF3375 faucet water filter replacements are NSF & WQA certified to reduce lead and over 70 contaminants. A water filtration system is important because tap water may look clean, but can contain potentially harmful contaminants from pipes. PUR faucet filtration system filter replacements are certified to reduce lead and 10x more contaminants than Brita. Compatible water filter replacements are not guaranteed to offer the same water quality, so make sure you are using a Genuine PUR filter for guaranteed results. Additionally, using a PUR filter system can reduce plastic waste and is more affordable than bottled water, helping you save up to $1,000 per year. Plus, each replacement water filter provides 100 gallons of filtered water, or 3 months of typical use. PUR is the #1 selling brand in faucet filtration. PUR has been developing innovative technologies for superior water filtration for over 30 years. We believe life deserves PUR water. Disclaimers: *Based on NSF certifications for original Brita® pitcher filter OB03 and PUR faucet filter RF-3375TM as of 6/4/20. Brita® is a trademark of Brita LP. **Based on Nielsen sales data for the 52 weeks ending 6/4/20. ***As of 6/4/20. NSF comparison valid for faucet mount and pour-through filters.