The Hamilton Beach 990084000 Filler Cap is a clear polycarbonate component designed for compatible HBH650 and HBH650-CE commercial blender containers. It fits into the lid opening to cover the fill port during blending and preparation. The cap has an outer diameter of 2 1/2 inches (64 mm) and a depth of 1 1/8 inches (28 mm), providing a suitable fit for the specified container assembl... https://partsfe.com/capfill-m-hbh650-hbh650-ce-for-hamilton-beach-part-990084000