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.

• Create a right-angle, center-end transition from the system run to an air register
• Ideal for situations where the opening in the floor runs parallel to the floor joists and header
• Installs with sheet-metal screws
• Insulate ductwork for system efficiency and comfort
• Seal seams with code-approved mastic, sealant or duct tape (not included)