Portafilter Pressure Gauge Kit mazzer-astoria-rio-espresso-grinder-parts/mazzer-major-e-grinder-parts pair with a spring and

pair with a spring and basket (both sold separately)

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

and Leva models

three fixing screw holes spaced 40mm on center

Portafilter Pressure Gauge Kit mazzer-astoria-rio-espresso-grinder-parts/mazzer-major-e-grinder-parts pair with a spring andPortafilter 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