IMS (BaristaPro-D28661) Precision Basket Triple 22Gr Although this basket was designed for bottomless portafilters (standard 58mm size) based on the below depth it will fit in some non bottomless ones. It is ridgeless (meaning that there is no protrusion in correspondence of the portafilter clip). Edge ø 70 mm - height 28 mm (please measure the depth of your portafilter before ordering) - 661 holes This IMS precision basket is made from Aisi steel 304 which is food-safe certified. The holes are made with a precise diameter and number, specifically designed and tested to ensure homogeneous extraction and a balanced quantity of soluble in cup. Detached from the filter edge and distributed toward the center to eliminate channeling. Electropolishing, to guarantee a surface with higher strength and durability. 100% made in Italy Fits: All 58mm Commercial-Style Portafilters that will accommodate its 28mm height. Ascaso Astoria Bezzera BFC Bianchi Brasilia Conti D.I.D. L’Orchestrale E61 standard ECM Elektra Commercial & SemiAutomatica Expobar Faema Fiorenzato Fracino Grimac Iberital Kees Van Der Westen La Marzocco La Nuova Era La Pavoni (commercial only) La Scala Magister Nuova Simonelli Promac Quality Espresso Rancilio Rocket Royal First SAB Sanremo Slayer SV Synesso VFA Vibiemme Victoria Arduino Wega