Standard full size 1.5 lb. hopper for the K30 Twin model grinder. (Old # 309426) Hopper slider not included. (This would be an optional smaller hopper that would fit K30ES/ K30 Vario/ K30 Air/ EK43 and EKK43 model grinders. Note that the EK43/ EKK43 grinders use an adapter to accommodate these hoppers. Older model EK43 grinders might need the adapter to use this hopper. Note: This hopper is the same as the Tanzania with one exception. It does not have the notch in the thread for the Tanzania spring loaded locking pin.