Garbage disposal replacement parts compatible with InSink-Erator. Flex coupler replaces part number 74085. The replacement flexible connector is installed to prevent exhaust pipe vibration, helping to avoid breakage. Helps remove waste from kitchen sinks and keeps garbage disposal systems functioning properly. There is a black layer on the surface of the metal parts, which is not damage but formed during the production process; this layer protects the metal and enhances sealing performance. Simple installation: easy to install and effectively resolves sink water leakage issues, saving time. When purchasing, please verify the product dimensions to ensure compatibility. Detailed product features and specifications are provided in the title and product information. We aim for complete customer satisfaction; if you have any questions, feel free to reach out for assistance. Thank you for choosing this product—we hope you are pleased with your purchase.