A fluid filtering device has a housing with a mounting mechanism disposed at the forward end and on the top surface of the housing. A fluid inlet is defined through the housing top surface, and at least one fluid outlet is defined through the housing bottom surface. A valve member is disposed within...http://www.google.es/patents/US6571960?utm_source=gb-gplus-sharePatente US6571960 - Faucet-mounted water filtration device