This Master Flow 10 in. x 4 in. to 6 in. Universal Register Box is made of galvanized steel and installs with sheet-metal screws. It's ideal for transitioning from round pipe to an air register.
- Galvanized-steel construction
- Creates a straight, in-line transition from an insulated flexible duct or round pipe to an air register or grille
- Installs with sheet-metal screws
- Insulate ductwork for system efficiency and comfort
- Seal seams with code-approved sealant or duct tape (not included)