#1 Home Improvement Retailer

Internet #

100139382

Model #

SCF3.25X10

Store SKU #

897113

Store SO SKU #

1000683207

3-1/4 in. x 10 in. Rectangular Stack Duct Starting Collar

$1898
  • Used to transition from a flat surface to stack duct
  • Durable galvanized steel construction
  • Easy installation with sheet metal screws
  • View More Details
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0 in stock
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Product Details

This Master Flow 3-1/4 in. x 10 in. Rectangular Stack Duct Starting Collar is made of durable, galvanized steel. It is used to transition from plenums (duct board or lined) or a flat surface to 3.25 in. x 10 in. stack duct. It installs easily with sheet-metal screws.
  • Galvanized-steel construction
  • Use to transition from ductboard plenums, lined plenums, or flat surfaces to 3-1/4 in. x 10 in. stack duct
  • Installs with sheet-metal screws
  • Insulate ductwork for system efficiency and comfort
  • Seal seams with code-approved mastic, sealant or duct tape (not included)
  • Return Policy

Additional Resources

From the Manufacturer

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Specifications

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Questions & Answers

8Questions
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Q:What is the height? We are looking for 6" tall. Not the 4".
by|Mar 5, 2020
2 Answers
Answer This Question

A:  Its height is 4 inches.

by|Mar 5, 2020

    A:  The 3¼ x 10 starting collar is 4" long(tall) to the flange, the total length/height is 4 ¾. If you have any other inquiries about our Master Flow products please call Technical Services at 800-211-9612.

    by|May 29, 2021
      1 found this answer helpful
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      Q:I’m building a soffit around duct work in the basement and need to extend the existing vents that...
      by|Apr 1, 2019
      1 Answer
      Answer This Question

      A:  It would depend on the size of the register, this would work if the register will fit in the 3 1/4 x 10 opening. If you have any other inquiries about our Master Flow products please call Technical Services at 800-211-9612.

      by|May 29, 2021
        1 found this answer helpful
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        Q:I'm looking for something that will slide inside an existing exterior rectangular vent opening. ...
        by|Sep 4, 2018
        2 Answers
        Answer This Question

        A:  You may have to cut the duct you are installing. V cut on each corner that will allow the new duct to collapse slightly so that it will go into the opening. Cut the V on each corner with the open end facing the opening.

        by|Apr 11, 2022
          7 found this answer helpful

          A:  Depending on the size, this may fit over or inside your existing opening. If you have any other inquiries about our Master Flow products please call Technical Services at 800-211-9612.

          by|Jan 14, 2023
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            Q:What size registrar works with this?
            by|Jul 9, 2017
            1 Answer
            Answer This Question

            A:  This is a collar to add 3 1/4 x 10 duct to a larger piece of duct. If you have any other inquiries about our Master Flow products please call Technical Services at 800-211-9612.

            by|Jan 22, 2021
              Showing 1-4 of 8
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              Customer Reviews

              4.3 out of 5
              (97)
              • 4.3
                out of 97 reviews
              • 100%recommend this product
              Filter by:
              Showing 1-10 of 97 reviews
              Well built and I did not have to unfold it
              Built well enough for the job. Some previous reviews mention that the collar came flat packed and they had to unfold and reshape it. Mine came fully assembled and ready to use. I used it to repair a vent on a stack and add a new one to the same stack. I trimmed the back to fit in the 3.5" deep stack.
              by
              • Verified Purchase
              goooooood and woooooooorked
              goooooood and woooooooorked
              by
              • Verified Purchase
              • Recommended
              1 found this review helpful
              by
              • Verified Purchase
              Range exhaust
              Work out well for new unit.
              by
              Response from Master FlowMar 1, 2023
              Thank you for the feedback. Glad you were satisfied with your Master Flow purchase. MasterFlow
              • Verified Purchase
              • Recommended
              I think a template should be included For quicker installation...
              I think a template should be included For quicker installation
              by
              Response from Master FlowFeb 22, 2023
              Glad you were satisfied with your Master Flow purchase. Thank you for the feedback and we value your concerns MasterFlow
              • Verified Purchase
              accurately bent and correct description...
              accurately bent and correct description
              by
              Response from Master FlowFeb 17, 2023
              Glad you were satisfied with your Master Flow purchase and thank you for your feedback. MasterFlow
              • Verified Purchase
              This is the transition piece between range fan and duct....
              This is the transition piece between range fan and duct. It is generic and fit nicely on the mayting flane of the range fan. Expensive, but worth it because your duct can telescope over this piece to provide adjustment for installation. If you just use duct it will likely be to tall to install in an overhead cabinet.
              by
              Response from Master FlowFeb 9, 2023
              Glad you were satisfied with your Master Flow purchase. Thanks for the feedback. MasterFlow
              • Verified Purchase
              by
              • Verified Purchase
              We installed a new microwave with a wall vent. ...
              We installed a new microwave with a wall vent. We had two previous microwaves installed by "professionals" that had supposedly good venting fans. They were terrible - any little smoke and the smoke alarms went off. With this installation, we decided to go it by ourselves. Pulling the microwave out we found an absolute mess for the venting. We had to do a bumpout installation with this one and purchased this little unit to connect the back vents. Was it easy, no, but it wasn't impossible either. Proper installation gave us amazing venting. HVAC company told us it would be over $100 to fabricate a similar connecting unit.
              by
              Response from Master FlowOct 20, 2022
              Thank you for the feedback. Glad you were satisfied with your Master Flow purchase. MasterFlow
              • Verified Purchase
              1 found this review helpful
              Slid right on to my microwave vent, no problems....
              Slid right on to my microwave vent, no problems.
              by
              Response from Master FlowOct 13, 2022
              Thank you for the feedback. Glad you were satisfied with your Master Flow purchase. MasterFlow
              • Verified Purchase
              1 found this review helpful
              Showing 1-10 of 97 reviews

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