Master Flow Products

All products from this brand (4 total)

Master Flow Pre-Insulated Register Box with Installation Rails create a straight (in-line) transition from round pipe or insulated flexible duct to an air register or grill. They arrive ready-to-install, conveniently pre-wrapped in a foam insulation cap. The included Installation Rails attach to the flange or easy attachment to joists or other nailing surfaces. Design saves time during installation and energy without additional sealant or insulation.

Master Flow Pre-Insulated Register Box with Installation Rails creates a straight (in-line) transition from round pipe or insulated flexible duct to an air register or grill. They arrive ready-to-install, conveniently pre-wrapped in a foam insulation cap. The included Installation Rails attach to the flange or easy attachment to joists or other nailing surfaces. Design saves time during installation and energy without additional sealant or insulation.