Warning since there also same models with 52 (49)mm portafilter please check the diameter of your machine before place the order if it is 54(51)mm as the size of this portafilter or contact us first for advice 
This is a complete portafilter with double filter , spring and double spout original La Pavoni and Gaggia product. Can fit to household line machines  group head, like, Europiccola 54(51) mm  , Strativari 54(51) mm , Professional 54(51) mm , G105, G106
Part Number:1165018
Description:2 CUPS FILTER HOLDER ASSEMBLY PAVONI/GAGGIA
TECHNICAL NOTESspout connection ø 3/8" - handle connection M12
countersunk fins 4 mm - with spring - without filt
for brew group
Internal diameter of the portafilter is 54(51 taping) mm 
for Coffee machine (GAGGIA) G105 - G106
for Coffee machine (PAVONI) EUROPICCOLA 54(51) mm - MIGNON 54(51) mm 
PROFESSIONAL 54(51) mm 
 
Item belonging to the following exploded drawings for espresso coffee machines, coffee grinders and bar equipment
ManufacturerDescription
GAGGIA COFFEE MACHINE MOD. G105-G106GA0101
PAVONI COFFEE MACHINE MOD. PROFESSIONALPA0201
PAVONI COFFEE MACHINE MOD.EUROPICCOLAPA0101
PAVONI COFFEE MACHINE MOD.STRADIVARIPA0301
Items suitable for / compatible with
Part numberManufacturer
LF1165018EPGC
S395307GAGGIA
395307PAVONI
395307RPAVONI