Garbage Disposal Parts Compatible with InSinkerator, 75499 Flex Coupler Replacement Replacement flex coupler compatible with InSinkerator models. Replaces previous part number 74085. The flexible connector helps reduce vibration between the garbage disposal and drain pipe, minimizing stress on the system and helping prevent leaks or damage. Designed to support proper waste removal and maintain efficient operation of garbage disposal units. Metal components feature a protective black coating applied during manufacturing, which enhances durability and improves sealing performance. This finish is normal and not indicative of damage. Simple installation processreplace the old coupler to quickly address sink leakage issues and restore functionality. Always verify product dimensions and specifications to ensure compatibility with your unit. Refer to the product title and details for complete information. We aim for complete customer satisfaction. For any questions regarding this product, feel free to reach out for support. Thank you for choosing this product.