KeGu Kenia or Guatemala Lab 65mm Standard Steel Replacement Burrs

These 65mm burrs fit Kenia, Guatemala Lab model grinders. Note different inside diameter sizes. Larger inside diameter hole 308157 fits in the fixed position in the rear of the grind chamber. Smaller inside diameter hole 308158 is the rotating burr that mounts on the prebreaker.***REPLACING 303898 & 308183***