Alpine 90RB4104

4" x 10" 90° Register Boot, 4" Round Pipe Connection

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This product includes:

The Alpine 90RB 90 degree register boot is used for transitioning rectangular wall stack ducting to round sheet metal pipe.

Features

90° transition between rectangular wall stack ducting and round sheet metal pipe
Use for supply and return air ducts
Available in various sizes
Great for remodeling and new residential projects