Macap Small Bean Hopper (No Lid) - M4/M5 Series This is Macap's small-version bean hopper, sized for the compact M4/M5 family of grinders, and includes the inner bean protector and shutoff gate. SPECIFICATIONS Throat O.D.: 58.5/60 mm Includes inner protector and gate COMPATIBILITY Fits: Macap MC-4, MC-4T, MC-5, MC-5T, M4, M-4A, M-4T (and most other models using the same small hopper mount) Replaces: N/A Works with: matching hopper lid, sold separately INSTALLATION Drop-in hopper swap, no tools needed for most models.