Flex Coupler compatibles with Insink-erator garbage disposal. Can replace 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. Flexible and soft rubber provides good sealing. The included 304 stainless steel bolts is not easy to corrode. durable for a long time. Easy installation, come with a hex head bolt to adjust the distance as needed, making it easy to use without having to bother a plumber. The tailpipe mount coupling makes it easy to take out and to put in. This part 75499 is great replacement for Compatible with 74085 Model.