Broan-NuTone 3-1/4 in. x 14 in. to 3-1/4 in. x 10 in. Galvanized Steel Duct Adapter

This Model T461 Broan 3-1/4 in. x 14 in. to 3-1/4 in. x 10 in. Galvanized Steel Duct Adapter makes it easy to integrate your ventilation system. It provides a transitional bridge between ducts. It is made from 30-gauge galvanized steel for long life.