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Register Boxes

Internet #

100198141

Model #

90RB10X4X6

Store SKU #

149039

10 in. x 4 in. to 6 in. 90-Degree Register Box

(97)Questions & Answers (5)
$1174
  • Creates a 90° transition to a register grille
  • Durable galvanized steel construction
  • Connect to round pipe or insulated flex duct
  • View More Details
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0 in stock
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Product Details

The Master Flow 10 in. x 4 in. x 6 in. 90 degree Register Box creates a right-angle transition from round pipe or insulated flexible duct to an air register. This box is made of galvanized steel. It can be installed with sheet metal screws. It is suitable for most HVAC applications.
  • Made of galvanized steel
  • Creates a right-angle transition from 6 in. round pipe or insulated flexible duct to a 10 in. x 4 in. air register
  • Install with sheet metal screws (not included)
  • Always seal seams with code-approved mastic, sealant or duct tape (not included)
  • Always insulate ductwork for greater system efficiency and comfort (insulation not included)
  • Return Policy

Additional Resources

From the Manufacturer

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Specifications

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Questions & Answers

5Questions
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Q:I?m trying to connect 6? semi-rigid flexible aluminum duct to this opening and have not been successful; the opening seems slightly too big so the duct won?t fit over. Am I missing something?
by|Jan 4, 2023
1 Answer
Answer This Question

A:  You may have to crimp one piece in order to connect the two products. If you have any other inquiries about our Master Flow products please email warrantyllbp@gaf.com

by|Jan 6, 2023
    caret
    Q:Can I use this for a ceiling vent? I can't find a matching grill cover
    by|Apr 30, 2021
    1 Answer
    Answer This Question

    A:  Yes this can be used for a ceiling vent, any 10 x 4 ceiling register/grill will fit. If you have any other inquiries about our Master Flow products please call Technical Services at 800-211-9612, Mon- Fri, 8 am 5 pm EST.

    by|Nov 15, 2022
      1 found this answer helpful
      caret
      Q:How does this fasten to a wall? I’m used to seeing boxes with “wings”. Thank you. Any photos?
      by|Apr 15, 2019
      1 Answer
      Answer This Question

      A:  The opening can be framed out the nail directly to the wall studs. If you have any other inquiries about our Master Flow products please call Technical Services at 800-211-9612.

      by|Jan 7, 2021
        1 found this answer helpful
        caret
        Q:I'm moving the location of registerbox in my house. I have 6in duct work and plan to use a baseb...
        by|Nov 28, 2018
        1 Answer
        Answer This Question

        A:  If you are looking for a 10x2.5x6 you will need to look under "Stack Boot" Master Flow has a 10 3.25 x 6 stack boot, we currently do not have a 10x2.5x6. If you have any other inquiries about our Master Flow products please call Technical Services at 800-211-9612.

        by|Nov 29, 2018
          Showing 1-4 of 5
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          Customer Reviews

          4.6 out of 5
          (97)
          • 4.6
            out of 97 reviews
          • 89% recommend this product
          Filter by:
          Showing 1-10 of 97 reviews
          May 4, 2023
          ...
          by
          Response from Master FlowMay 8, 2023
          Thank you for the feedback. Glad you were satisfied with your Master Flow purchase. MasterFlow
          • Verified Purchase
          Feb 18, 2021
          works great
          No air leakage from the seams actually used this to angle a bath exhaust out a tight soffit vent. I trimmed the corners in order to flare the sides and screw into the soffit. Of course, I added a one way damper to prevent outside air from coming in
          by
            • Recommended
            Mar 28, 2017
            I needed this Register box to finish heater ducks for my basement remodeling project. It has perf...
            I needed this Register box to finish heater ducks for my basement remodeling project. It has perfect size to fit at the beam up on the ceiling. It was easy to fit and get it done. Thanks!
            by
            • Verified Purchase
            • Recommended
            May 4, 2023
            Everything fit good. Install was easy...
            Everything fit good. Install was easy
            by
            Response from Master FlowMay 8, 2023
            Thank you for the feedback. Glad you were satisfied with your Master Flow purchase. MasterFlow
            • Verified Purchase
            Mar 22, 2023
            by
            • Verified Purchase
            Jan 25, 2023
            by
            • Verified Purchase
            Dec 29, 2022
            by
            • Verified Purchase
            Dec 14, 2022
            by
            • Verified Purchase
            Nov 9, 2022
            by
            • Verified Purchase
            Oct 13, 2022
            Wow. Dis good. I like. Hot air make...
            Wow. Dis good. I like. Hot air make me happy.
            by
            • Verified Purchase
            Showing 1-10 of 97 reviews

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