Hello GreenLion. Yes, the Lelit portafilter is beautiful (very beautiful indeed!), and fits all portafilters with an industry standard portafilter holder (58mm) - LORRY no Illy FrancisFrancis has such a portafilter holder.... (old generation "X1 Klassik" has 52 mm and new generation X1 Ground has 56 mm; Trio is not available for ground coffee, but only for E.S.E Pods).