Quantity Notice — Please Read This listing ships ONE (1) part per order. Product photos may show multiple parts, kits, or comparison shots for identification — only a single unit is included with each purchase. To order more than one, increase the quantity in your cart. Compatible Models: GS3 Genuine OEM La Marzocco replacement part. This 3/8 to 1/4 bsp is the factory-spec component for repairing or rebuilding your machine. Shipped from our Berkeley, California service location. Kanen Coffee is a veteran-owned specialty coffee shop and authorized La Marzocco service partner.