Garbage disposal replacement parts compatible with insink-erator. flex coupler replaces their previous part number 74085.the replacement flexible connector is installed so that the exhaust pipe does not vibrate, which helps prevent breakage. helps remove waste from kitchen sinks; keeps garbage disposal systems working properly.there is a black layer on the surface of the metal parts (not damaged, formed by the production process), one is to protect the metal, and the other is to obtain a better sealing effect.simple installation: easy to install, install the replacement parts, and immediately solve the problem of water leakage in your sink. save your precious time~ When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. in the title and , we have provided detailed information about the product, including its features and specifications We want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don't hesitate to contact us. we are here to help and will do our best to assist you. Thank you for choosing our product. we hope you enjoy it