We bought a ZeroWater product after seeing them advertised on a TV ad many years ago. Our city water sometimes has an off taste & smell& is not pleasant to drink. We got the large container instead of the pitcher! After many years I still have the container and I dearly love it! I drink a lot of water & ZeroWater is the best! The filters work great & do exactly what they are advertised to do! One of the best investments we ever made!!!