Master Flow 14 in. x 8 in. to 8 in. Universal Register Box with Flange

The Master Flow 14 in. x 8 in. x 8 in. Universal Register Box with Flange can be installed before dry walling. It creates a straight (in-line) transition from 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.

• Creates a straight, in-line transition to a register grille
• Durable galvanized steel construction
• Used in ceiling applications (snap-on rails sold seperately)