Longer filter life: Each faucet filter provides 320 gallons of cleaner water, or 3 months of typical use - thats 2x longer than most faucet filters. 3-pack replacement filters are available for purchase! (Search "WD-FF-01A")Lead reduction: The innovative ACF material features great and fast filtration. You will fill up 4 water bottles (16.9 oz for each) in 1 minute. Upgraded filtration technology to reduce lead chlorine, offering safer and refreshing water for you and your family.(Tested by third party laboratory) : ! ! Does pull-out, hand-held, spray style faucets or faucets with sensor. Please verify if our product suits your faucet before purchase per the detailed instructions in product pictures. ' , .Convenient usage: The design of a simple switch between quality filtered water and regular tap water helps prolong the service life of the filter. The filtered water faucet adopts leak-proof technology and can be attached to your faucet very easily with the various adapters included.NSF certifications: Tested and certified by NSF International against NSF/ANSI standard 42 for the reduction of chlorine, taste and odor, and to NSF/ANSI 372 for lead-free material. Provides you with safer and healthier water. If you want to decrease the TDS value, please choose RO system.