La Marzocco Group Bayonet Ring argenta-parts/astoria-steam-water-valves-pipes also the rare Linea 1

also the rare Linea 1 Group (check valve to steam valve)

it may be more practical to just replace the portafilter body along with the handle

O-rings included on flange

See our grinder burr maintenance guide for care and replacement timing

Electrical board replacement - verify your exact model/version before ordering

La Marzocco Group Bayonet Ring argenta-parts/astoria-steam-water-valves-pipes also the rare Linea 1La Marzocco Group Bayonet Ring Bayonet ring that locks the portafilter into the group on La Marzocco machines; wears with use and eventually causes the portafilter to seat loosely or engage incorrectly. COMPATIBILITY Fits: All La Marzocco groups INSTALLATION Requires group disassembly; best handled by an experienced technician. PRO TIPS If your portafilter feels loose or won't lock in fully at the usual angle, a worn bayonet ring is the most common