Rancilio Classe Series Complete Portafilter - Double This updated double portafilter fits across the entire Rancilio lineup, not just the Classe series, and comes with the new-style open spout and internal spring. No basket is included, but any volume basket from 6 to 21 grams will drop right in. COMPATIBILITY Fits: any Rancilio model Replaces: Rancilio part #10071045R INSTALLATION DIY, drops into the group head like your factory portafilter. PRO TIPS Since any basket from 6g to 21g fits, this is a good opportunity to size up your basket to match your actual dose if you've been dosing heavier than your factory basket was designed for, a basket that's too small for your dose is a common cause of pucks that overflow or channel at the rim.