Master Flow 10 in. x 4 in. to 6 in. End Register Box

This Master Flow 10 in. x 4 in. x 6 in. End Register Box is ideal for when the opening in your floor is parallel to the floor joists and header and you need to create a right-angle, center-end transition between your system run and an air register. Connects to 6 in. flexible duct or round Pipe. Accepts a 10 in. x 4 in. grille.

• Creates a center-end transition to register grille
• Durable galvanized steel construction
• Connect to round pipe or insulated flex duct