The Dryer Transition Duct connects the dryer exhaust port to your home's external exhaust vent. This all-metal UL-approved dryer venting complies with manufacturer's safety recommendations and helps prevent restricted airflow. This is an accessory that can be used with several brands; check to see if your model number is compatible. Installing this accessory will require basic hand tools and novice repair experience. Be sure to unplug the dryer or shut off the house circuit breaker for the appliance before installing this part.