Portafilter Pressure Gauge Kit mazzer-astoria-rio-espresso-grinder-parts/mazzer-major-e-grinder-parts and comes with the internal

and comes with the internal packing: spring

Technician-level job — part of a lever group rebuild and requires proper seal/gasket replacement alongside it

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

Mazzer Kony Conical Burr Set

Portafilter Pressure Gauge Kit mazzer-astoria-rio-espresso-grinder-parts/mazzer-major-e-grinder-parts and comes with the internalPortafilter Pressure Gauge Kit A complete 3 8" portafilter fitting and pressure gauge kit that lets you measure actual pump dispensing pressure right at the group head the most accurate place to check pressure, rather than relying on a gauge mounted elsewhere in the hydraulic circuit. SPECIFICATIONS 3 8" portafilter fitting with mounted pressure gauge Gauge is not liquid filled COMPATIBILITY Fits: portafilters with a 3 8" threaded port; some assembly