Master Flow 12 in. x 12 in. to 10 in. Ceiling Register Box

Ceiling Register Box features a 30-gauge, galvanized-steel construction to provide strength and durability. This ceiling register box creates a transition from round pipe or insulated flexible duct to an air register or grille. It can be installed with sheet-metal screws. Used in ceiling applications (snap-on rails sold seperately) Durable galvanized steel construction Connect to round pipe or insulated flex duct 30-gauge, galvanized-steel construction for strength and durability Creates a transition from 10 in. round pipe or insulated flexible duct to a 12 in. x 12 in. air register or grille Use sheet-metal screws for a proper installation (not included) Always seal seams with code-approved mastic, sealant or duct tape (not included) Always insulate ductwork for greater system efficiency and comfort (insulation not included) Master Flow, 12 in. x 12 in. to 10 in.