Internal .01M - Ultra Biostone Filter . For Athena, Melody, Venus, Delphi, Orion, Aquarius, Miracle, Neptune, Mavello. Not for Vesta. The Emco Tech .01M filter will fit all Emco/ Jupiter/ IonWays/ IonLife models except for the Vesta, AlkaBlue models, the Technos and the Regency models The Emco tech .01M Biostone filter is the finest water filter available for domestic water purifiers (the same size as is used for kidney dialysis). This filter allows essential alkalizing minerals to pass through while cleaning and ionizing the water. Contains layers of Tourmaline and Calcium within an anti-bacterial carbon block filter.