Register Boxes create a straight (in-line) transition from round pipe or insulated flexible duct to an air register or grill. Available in an assortment of configurations. This particular item transitions from 12 in. X 4 in. register to a 6 in. pipe or flexible duct.
Galvanized steel construction
Always seal seams with building code approved sealant or duct tape
Install with sheet metal screws
Always insulate ductwork for greater system efficiency and comfort
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