Mazzer Grind Adjustment Collar for Major/Robur Espresso Grinder Brand_Giemme Since this is a discontinued

Since this is a discontinued after-market wand with limited remaining stock

Head diameter: 20mm

Alternatives like the Linea PB

Works with: F_252 flange o-rings (included) and Lucifer/Parker coils

that's the clearest sign the gauge itself has failed rather than the boiler

Mazzer Grind Adjustment Collar for Major/Robur Espresso Grinder Brand_Giemme Since this is a discontinuedMazzer Grind Adjustment Collar Replacement grind adjustment ring for Mazzer's larger commercial grinders. COMPATIBILITY Fits: Mazzer Major, Robur, Royal, and Stark grinders INSTALLATION Moderate difficulty, requires removing the hopper and burr carrier assembly to access; a technician familiar with Mazzer grinders is recommended if you haven't done a burr service before. PRO TIPS If your grind setting drifts on its own or feels loose gritty when you