Group head conversion kit to change your Gaggia Classic Pro from 58mm to 49mm in just 3 minutes! Or switch back to 58mm just as quickly.

Installation guide can be found here. Video Demo here.

Kit Includes:

• 49mm Bayonet Adapter
• Shower Screen
• Diffuser Block (Stainless Steel)
• Two group head seals (one spare)

Note:

• *At this time, only my portafilter has been verified to be compatible - which works with all of my 49mm Billet Baskets. The OEM Cremina portafilter is compatible but it is uncertain if all of them are as it was produced for decades - there may be variations or design changes over that time period.
• Aftermarket CNC machined Cremina/La Pavoni portafilters should be avoided due to the narrow/small mounting lugs.
• Not compatible with La Pavoni portafilters
• Baskets are not included