Fiorenzato AllGround Classic Upper Burr Carrier Genuine Fiorenzato upper burr carrier for the AllGround Classic version only. COMPATIBILITY Fits: Fiorenzato AllGround Classic Replaces: Fiorenzato #900001735/R INSTALLATION Technician install recommended, burr carrier replacement requires resetting grind calibration afterward. PRO TIPS This carrier is specific to the "Classic" AllGround variant, the AllGround Sense and other variants use different upper carriers, so confirm your exact model before ordering rather than going by "AllGround" alone.