Rancilio Rocky Upper Burr Carrier Kit This kit, a special order for North America, is the only way to obtain either part, and includes the upper burr carrier and lower grind chamber (both part #14705021), for when the female threads on the chamber become damaged. The upper carrier is only sold in combination with the chamber. This is a special order item shipped directly from the manufacturer separately from the rest of your order: in-stock units ship fast, while out-of-stock units typically require 4-6 weeks for processing before shipping. COMPATIBILITY Fits: Rancilio Rocky grinder Replaces: Rancilio part #14705021 Works with: Includes upper burr carrier and lower grind chamber INSTALLATION Moderate difficulty; basic hand tools.