The Master Flow 12 in. x 12 in. Universal Register Box with Flange is designed to be used with 8 in. ducts to create a straight transition from a round pipe or insulated flexible duct to an air register or grill. Made of zinc-coated, galvanized steel this register box is designed for durability. The built-in flange helps you install the box before dry walling.
- Made of zinc-coated, 30 gauge-galvanized steel
- Designed to create a straight transition for 8 in. round ducts or insulated flexible duct to an air register or grill
- Built-in flange helps provide space for easy joist attachment before dry walling
- Always seal seams with code approved mastic, sealant or duct tape
- Features a minimum temperature rating of -100 degrees Fahrenheit and a maximum temperature rating of 390 degrees Fahrenheit