As an Amazon Associate, we earn from qualifying purchases. Home » La Marzocco » MZ_336 La Marzocco Internal Group Tube O-ring La Marzocco . MZ_336 Gallery Attributes Brand name, Manufacturer name, ManufacturerLa Marzocco Extra Product NameLa Marzocco Internal Group Tube O-ring moq, multiple, tierMinQty11 MPN, SKUMZ_336 qtyInStock0 snippetSeals the internal group siphon tube to the group head. ORING 2062 DIA INT 15,6 SPESS. tierPrice12.48 Distributor offers SellerSKUMOQIn stockMultiplePrices espressoparts.comMZ_336111 @ $2.48