As an Amazon Associate, we earn from qualifying purchases. Home » La Marzocco » MZ_537 La Marzocco 'GB5/FB80' Stainless Steam Valve Seat (Special Order Item) La Marzocco . MZ_537 Gallery Attributes Brand name, Manufacturer name, ManufacturerLa Marzocco Extra Product NameLa Marzocco 'GB5/FB80' Stainless Steam Valve Seat (Special Order Item) moq, multiple, tierMinQty11 MPN, SKUMZ_537 qtyInStock0 tierPrice122.55 Distributor offers SellerSKUMOQIn stockMultiplePrices espressoparts.comMZ_537111 @ $22.55