Precision Double Portafilter Basket (14/20g) A precision basket with round, conical-section holes in food-safe AISI 304 stainless steel, the conical taper on each hole is what gives this style more even extraction than a basket with straight-punched holes. Pairs with a 58mm tamper. SPECIFICATIONS AISI 304 stainless steel, food-safe certified Round holes with conical section 14/20g dose range Matching tamper: ø58mm COMPATIBILITY Fits: some, but not all, models of Astoria, Casadio, Conti, Elektra, Fracino, Kees van der Westen, Magister, La Marzocco, Nuova Simonelli, La Pavoni, Promac, Rancilio, Slayer, Synesso, and Victoria Arduino Fits: E61-style groups on Ascaso, Bezzera, BFC, Bianchi, Brasilia, DID, ECM, Expobar, Faema, Fiorenzato, Grimac, Iberital, La Nuova Era, La Scala, L'Orchestrale, Quality Espresso, Rocket, Royal, SAB Italia, San Remo, VFA, Vibiemme, and Wega INSTALLATION A simple drop-in basket swap, but confirm fit for your specific portafilter first, since this basket doesn't fit every model from the brands listed above. PRO TIPS Full IMS specifications and diameter/height details are available here, worth checking against your portafilter's basket recess before ordering, since fit varies even within compatible brand families.