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Alpine 90RB4104

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

(4 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 10 inches
Duct Connection Diameter

The diameter of round duct connected to the fitting.

Duct Connection Diameter
4 inches

In 2002 Alpine Home Air Products became the first company to sell heating, air conditioning and indoor air-quality products online. We have proudly served hundreds of thousands of customers, helping them save time and money by buying their products direct.