This Master Flow 12 in. x 4 in. Register Box Saddle fits over a section of round pipe to provide a transition to a grille or air register. It can be cut down for your convenience. Creates a horizontal transition from round pipe to an air register or grille.
- Creates a horizontal transition from round pipe to an air register or grille
- Installs with sheet metal screws
- Designed to fit over a section of round pipe
- Easily cuts down if necessary
- Insulate ductwork for system efficiency and comfort
- Seal seams with code-approved mastic, sealant or duct tape (not included)