Master Flow 10 X 6 X 6-inch Register Box End

Master Flow, 10 in. x 6 in. x 6 in. End Register Box, ERB10X6X6

End Register Box is great for creating a transition from the system run to an air register when the opening in your floor runs parallel to the floor joists and header. Connects to 6 in. flexible duct or round Pipe.