Advanced German design and technology with a convenient pour-through lid. The Mavea Meter 3 way Micro Computer measures water hardness, how much water has been filtered and time in use. Has a large 9 glass filtered water capacity as well as a rubberized handle which allows a soft grip and rubberized base prevents scratching of delicate surfaces. System Tested for and Certified by the WOA against NSF/ANSI Standards 42 and 53.