Baristapro Nanotech by IMS 18-22 gram espresso filter basket Non-stick coating made of Nanoquartz increases the resistance to corrosion and chemical reaction. DESCRIPTION Average capacity 18/22 gr. SHAPE BORDER: Ø 70 mm (B70) HEIGHT: 24 mm (H24) CORPO: Ø 60 mm for Ø 58 mm tamper RIDGE: ridgeless SHAPE: Cylindrical with Convex Bottom The shape was created by I.M.S. to obtain the proper ratio between the base and height of the coffee puck in relation to capacity. The filter is cylindrical with a convex bottom to collect the coffee towards the center during percolation. This shape has been designed to exploit the whole coffee puck, which also facilitates drying and expulsion. Best combined with bottomless portafilter holders. PERFORATION I.M.S. perforation is exclusive and patented PERFORATED AREA: Ø 49 mm area optimized in relation to the shape of the filter. NUMBER OF HOLES: 661 Hexagonal spacing (E) The number and distribution of the perforations are designed to balance the delivery in relation to the height and shape of the filter and perforated area. HOLE DIAMETER: 0.30 mm SHAPE OF THE HOLE: CIRCULAR with CONICAL cross section. COMPETITION PERFORATION: Relaminated and Recalibrated. FINISHING TUMBLING: Wet vibro finishing with ceramic inserts and drying with corncob PICKLING: Passivation and preparing of the material ELECTROPOLISHING: smooth surface with unmatched sanitary and non-contaminating qualities is obtained. COMPATIBILITY Ascaso Astoria Bezzera Bfc Bianchi Brasilia Conti D.I.D. L'Orchestrale E61 standard ECM Elektra Expobar Faema Fiorenzato Fracino Grimac Iberital Kees Van Der Westen La Marzocco La Nuova Era La Pavoni La Scala Magister Nuova Simonelli Promac Quality Espresso Rancilio Rocket Royal First SAB Sanremo Slayer SV Synesso VFA Vibiemme Victoria Arduino Wega Not sure which size or part you need? All Espresso Machine Parts are non-returnable. If you aren't sure what part you need please send us a message in the contact box below and we will help get you set up for success!