Restore a proper seal on your Gaggia espresso machine with this genuine OEM brew group gasket (part NG01-001). Sized at 72mm x 57mm x 8.5mm, it's a direct fit for Gaggia Classic and compatible models — one of the most common maintenance parts for keeping your machine pulling consistent shots. Specifications Part number: NG01-001 Dimensions: 72mm (outer) x 57mm (inner) x 8.5mm (thickness) Genuine Gaggia OEM part Material: food-safe rubber/silicone Compatible with Gaggia Classic and select Gaggia models Frequently Asked Questions What does the brew group gasket do? The brew group gasket creates an airtight seal between the portafilter and the group head. A worn or cracked gasket causes pressure loss, leaks around the portafilter, and inconsistent espresso extraction. How often should I replace my Gaggia group gasket? Most home baristas replace the group gasket every 6–12 months depending on usage. Signs it needs replacing include a loose-feeling portafilter, coffee grounds leaking around the seal, or a drop in shot quality. How do I replace the brew group gasket on a Gaggia Classic? Remove the shower screen and screen holder from the group head. Use a flathead screwdriver or gasket pick to pry out the old gasket. Press the new NG01-001 gasket firmly into the groove, refit the screen and holder, and run a blank shot to confirm the seal is tight.