A water purifier includes a diverter which can be detachably attached to a water faucet to select a plurality of water passages and a filter cartridge which can be detachably attached to the diverter to purify a water to be supplied through the diverter. The diverter is provided with a connector portion...http://www.google.fr/patents/US5653868?utm_source=gb-gplus-shareBrevet US5653868 - Diverter and water purifier having same