Product availability is subject to change without notice. Not all products are available from all facilities.
Master Flow's Straight Register Box is designed to transition from round pipe or Insulated Flexible Duct to an air register. It is made of galvanized steel and installs with sheet-metal screws.
The 90-Degree Register Box creates a right angle (90-degree) transition from round pipe or insulated flexible duct to an air register or grille. It is made of galvanized steel to provide strength and durability. It can be installed with sheet-metal screws.
Master Flow's End Register Box is ideal when the opening in your floor is parallel to the floor joists and you need to create a center-end transition for your register.
Ceiling Register Boxes are designed for a transition from round pipe or insulated flexible duct to an air register or ceiling grille. It can be installed with sheet metal screws.
Master Flow's Insulated Register Box is designed to transition from round pipe or flexible duct to air register or grille. It is insulated on the inside as well to help minimize condensation and better control noise.
The Register Box Saddle allows you to cut and opening of appropriate size in the pipe branch line and secures the saddle over the hole. Insulated ductwork for system efficiency and comfort.
Duct Board Insulated Register Boxes are used to connect round pipe or insulated flexible duct to an air register or grille in the ceiling. They are pre-insulated with R6 Ductboard that will help provide thermal efficiency, control condensation and absorb system noise. This box can be fitted with multiple collar sizes.
Rails were developed to help easily install flanged register boxes including Ductboard Register Boxes and Insulated Register Boxes. They easily attach flanged register boxes to joists or other nailing surfaces. Six rails in a pack can connect up to three register boxes.
The Master Flow Register Box with Flange creates a straight (in-line) transition from round pipe or insulated flexible duct to an air register or grille. The built-in flange provides a drywall lip for rough-in installation and a way to connect snap-on rails for connection to a joist.