The Master Flow 8 in. x 8 in. x 6 in. Universal Register Box is made of galvanized steel. It creates a straight (in-line) transition from 6 in. round pipe or insulated flexible duct to an air register or grille. The built-in flange provides space for easy joist attachment to help create a secure installation.
- Galvanized steel construction
- Creates a straight (in-line) transition from 6 in. round pipe or insulated flexible duct to an 8 in. x 8 in. air register or grille
- Built-in flange provides an area for register screws, Sheetrock frame or joist attachment for an easy installation before drywalling
- Always seal seams with building code-approved sealant or duct tape (not included)

















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