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Alpine 90RB4128

4" x 12" 90° Register Boot, 8" Round Pipe Connection

(7 Reviews)

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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

Angle
90 °
Register Boot Opening

The width and length of the register.

Register Boot Opening
4 x 12 inches
Duct Connection Diameter

The diameter of round duct connected to the fitting.

Duct Connection Diameter
8 inches