This Master Flow 14 in. x 6 in. to 8 in. Universal Register Box with Flange is ideal for creating an in-line transition from round pipe to an air register. It has a built-in flange for your convenience. Creates a straight， in-line transition from an insulated flexible duct or round pipe to an air register or grille.
Galvanized steel construction
Creates a straight， in-line transition from an insulated flexible duct or round pipe to an air register or grille
Built-in flange provides space for easy joist attachment for a more secure installation
Flange allows you to install the register box before putting up drywall
Seal seams with code-approved sealant or duct tape (not included)
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