Rancilio MD-40/50/80 Doser Divider This divider sits inside the doser chamber on Rancilio's commercial doser grinders (MD-40, MD-50, and MD-80), separating ground coffee into individual doses. 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 6-10 business days for processing before shipping. COMPATIBILITY: Fits: All commercial Rancilio doser models (MD-40, MD-50, MD-80) Replaces: OEM doser divider (MR_77) Works with: Doser chamber and star (mixer) assembly INSTALLATION: Requires opening the doser lid to access; basic hand tools, moderate difficulty.