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5 in. x 25 ft. Insulated Flexible Duct R6 Silver Jacket

$5533
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  • R6 fiberglass insulation is perfect for heating and A/C systems
  • Galvanized core wire resists rust and corrosion
  • Insulated duct can withstand up to 200°F
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Product Details

The Master Flow 5 in. x 25 ft. Insulated Flexible Duct R6 Silver Jacket is used in standard Heating and Air Conditioning (HVAC) systems and some venting applications. The duct has R6 insulation which contains 33% more insulation than the standard R4.2 product. This additional insulation provides greater thermal efficiency to save energy. The product is also covered in a heavy duty, silver jacket for durability. The duct is ETL listed, meeting the UL181 standard.
  • R6 fiberglass insulation for greater insulating power
  • Flexible duct is convenient for use in multiple applications including heating and A/C systems and some venting
  • Oversized core to connect quickly and easily to standard sheet metal fitting
  • Galvanized core wire for greater corrosion resistance vs. non-galvanized wire
  • Duct can be cut to length as needed
  • Insulated duct features a maximum temperature rating of 200 degree F
  • Always install per instructions and seal using approved mastic or sealant (or approved tape)
  • Return Policy

Additional Resources

From the Manufacturer

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Specifications

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Questions & Answers

237Questions
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Q:How do I add another round flexible duct
by|Jan 26, 2023
1 Answer
Answer This Question

A:  How to add flexible ducting depends on many variables, including what the original plenums are made of and what it is being used for, supply, returns or other venting options. 6" Flexible duct would require 6" collars and fittings. If you have any other questions please email stance.warrantyllbp@gaf.com for assistance.

by|Jan 26, 2023
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    Q:Can you use this for dryer vent
    by|Dec 31, 2022
    2 Answers
    Answer This Question

    A:  No,,, it will melt.

    by|Jan 7, 2023

      A:  Master Flow does not recommend using our Insulated Flexible Duct for venting a Dryer. Check your local codes and the dryer manufacturer's instructions for the correct venting guidelines.

      by|Jan 3, 2023
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        Q:Can this be used as dryer vent in an included over hang to reduce moisture condensation in vent line
        by|Dec 29, 2022
        1 Answer
        Answer This Question

        A:  Master Flow does not recommend using our Insulated Flexible Duct for venting a Dryer. Check your local codes and the dryer manufacturer's instructions for the correct venting guidelines.

        by|Dec 29, 2022
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          Q:I received my duct, very well insulated. Question: I'm using it in my basement, 9' of the 25', 10#, DIY project, suggestions on how to hang from rafters without damaging foil?
          by|Dec 21, 2022
          5 Answers
          Answer This Question

          A:  Home depot sells rolls of woven duct strap. it works fine.

          by|Dec 26, 2022

            A:  You can use Model #HS1.75WV strapping to hang your duct. If you have any other inquiries about our Master Flow products please email warrantyllbp@gaf.com

            by|Dec 23, 2022

              A:  Wherever you bought this will have strapping that can be used. You nail or screw a piece long enough to a floor joist then wrap it under the duct and nail to an adjacent joist. A UL approved fabric such as( 1-3/4" x 100 Yds. Silver Woven Duct Strap (UL Approved) Brand: DiversiTech SKU: 710-105) should work.

              by|Dec 26, 2022

                A:  Duct strapping or webbing

                by|Dec 26, 2022

                  A:  Hi. I am not sure but I think my son used chicken wire to basket the the insulation tube or wire of some sort so as not to puncture or tear the foil.

                  by|Dec 23, 2022
                    Showing 1-4 of 237
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                    Customer Reviews

                    4.7 out of 5
                    (1,158)
                    • 4.7
                      out of 1,158 reviews
                    • 95%recommend this product
                    Filter by:
                    Showing 1-10 of 1,158 reviews
                    Added a bathroom exhaust vent fan due to no window...
                    Added a bathroom exhaust vent fan due to no window in bathroom and metal hinges, light fixture etc were rusting due to the humidity from showers. Very costly to install because bathroom was in the center of house. Vented it to the end of house instead of roof. Didn’t want to mess with the shingles. All in all, I believe this will solve the problem and bring house up to code. Home Depot was the only store in town that sold this.
                    by
                    Response from Master FlowJan 20, 2023
                    Thank you for the feedback. Glad you were satisfied with your Master Flow purchase. MasterFlow
                    • Verified Purchase
                    Easy to work with. Does exactly what it is supposed to. I had two 25 ft sections. Used about 20...
                    Easy to work with. Does exactly what it is supposed to. I had two 25 ft sections. Used about 20 ft for one duct and attached the remaining 5 ft to the other full 25 ft section for a second needed duct. Had to stretch it a bit so as to not have to buy another 25 ft. Would have liked it if it came in greater than 25 ft sections - maybe 30 or 40 ft length.
                    by
                    • Verified Purchase
                    • Recommended
                    3 found this review helpful
                    Should've gotten the R8 flex but this works
                    Should've gotten the R8 flex but this works
                    by
                    • Verified Purchase
                    • Recommended
                    2 found this review helpful
                    I replaced my home entire HVAC duct system and I'm glad I did because my AC is working like a cha...
                    I replaced my home entire HVAC duct system and I'm glad I did because my AC is working like a charm. Master Flow DUCTS are quite inexpensive and seem durable compared to my old duct work..
                    by
                    • Verified Purchase
                    • Recommended
                    2 found this review helpful
                    Easily maneuvered, installed, sealed. Zip ties and foil tape worked perfectly for securing this d...
                    Easily maneuvered, installed, sealed. Zip ties and foil tape worked perfectly for securing this ductwork .
                    by
                    • Verified Purchase
                    • Recommended
                    I liked it.
                    I liked it.
                    by
                    • Verified Purchase
                    • Recommended
                    It really was very easy to unpack and install, I appreciate that you hold things in an efficient ...
                    It really was very easy to unpack and install, I appreciate that you hold things in an efficient and simple way to get the job done
                    by
                    • Verified Purchase
                    • Recommended
                    Following an upstairs flood, I had to replace my air duct since a lot of water went down the old ...
                    Following an upstairs flood, I had to replace my air duct since a lot of water went down the old air duct. This duct, plus a couple of zip-ties made an easy job! To cut it, I used a box-cutter knife, plus a pair of wire cutters when I got to the coiled wire of the duct. If needed, a little extra silver/foil duct tape can help ensure it doesn't leak air around the seal, sort of a belt & suspenders approach to ensuring the duct doesn't slip off the zip-tie connections.
                    by
                    • DIY
                    • Verified Purchase
                    • Recommended
                    Excellent stuff it's a much better value than the more expensive similar models by other brands I...
                    Excellent stuff it's a much better value than the more expensive similar models by other brands I actually didn't use for its intended use, I cut in half the long way and wrapped around steam pipes. It was 1/3 the price of official pipe insulation! 10" tube was perfect for 50' of 4" steam pipe, 8" tube was perfect for 50' of 3" steam pipe. The trick to getting it to fit nice without compressing the Rvalue from 6 to 4 was peeling in half from 1.5 to 0.75" and wrapping around gently twice (also why as shown in the photo the pink glass stayed on the pipe until I put on the silver foil) Alternatively you can cut into long strips 1/4 of the width and spiral around the pipe if you curl gently enough you can maintain the 1.5" of the R6.
                    by
                    • Verified Purchase
                    • Recommended
                    3 found this review helpful
                    With the freakishly cold weather we've been having this winter, we developed a problem with water...
                    With the freakishly cold weather we've been having this winter, we developed a problem with water vapor freezing inside our regular plastic ducting that connected the bathroom vent fan up through the attic and out through the roof. When the ice would melt, water would drip back out of the vent fan and make a mess in the bathroom. We removed the old plastic ducting (along with the 10 lb chunk of ice that was inside it - wow!) and replaced it with this. It was easy to connect since the inside is the same size as the regular cheapo plastic ducting. And since switching, we have not had any more dripping so I assume it is doing its job. The only problem is that 25 feet of this is WAY more than we needed and it didn't come in smaller lengths. So now we have a pile of leftovers which I suppose we'll use if any of our other bathroom fans have the same issue in the future. Anyhow, this did the job for a reasonable price and now we can sit on the toilet without getting dripped on - what more could you ask??
                    by
                    • Verified Purchase
                    • Recommended
                    13 found this review helpful
                    Showing 1-10 of 1,158 reviews

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                    Ratings
                    (37)
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                    InsulatedYesYesYesYes
                    Maximum air flow (CFM)55866030.0620.0
                    THD SO SKU 100068350010006852761000684823
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