Multipure Aquaversa MPCT Carbon Block Stainless Steel Countertop Water Filter # NSF/ANSI certified to standard 42 and 53 and certified by the state of California. Easy to install and convenient to use, and provides great tasting healthier drinking water whenever you need it. The MultiPure Stainless Steel Water Filter is backed by a 90 day money back guarantee and a lifetime warranty. Filters your water for approximately (1 Year) 750 gallons