Includes galvanized steel shredder ring and grinding elements with 360 deg. stainless steel swivel impellers, permanently lubricated bearings, and Quick-lock mounting assembly for faster, easier installation. Also includes overload protection switch with manual reset, self-service wrench to free simple jams, corrosion-resistant grind chamber and sink flange, corrosion protection shield, dishwasher drain connection, and 1-piece plastic stopper. 3 year warranty. Emerson by In-Sink-Erator Disposers use same mounting assembly as In-Sink-Erator Disposers. In-Home Service Program This service program has over 1400 authorized In-Sink-Erator disposer service centers which handle the Emerson disposer line.