These filters are garbage. They clog constantly and the water doesn't taste any better than the tap water from the sink. I returned the first three I purchased because I couldn't get any water to flow. and EVERY filter I've bought since needs to be slapped, shaken, tapped, installed, uninstalled, slapped, shaken, banged, etc, several times to get water flowing and again to keep it flowing. Easily the worst water filters I've ever used.