Embodiments of the present invention comprise reverse osmosis filters and systems comprising embedded radio frequency identification (RFID) tags for storing and retrieving data. The RFID tags can be preferably embedded under a filtration device's protective outer shell. Information can be easily stored...http://www.google.com.au/patents/US7481917?utm_source=gb-gplus-sharePatent US7481917 - Filtration devices with embedded radio frequency identification (RFID) tags
