BathroomFanExperts.com > 4" X 25' Insulated Flex Duct

4" X 25' Insulated Flex Duct

4" X 25' Insulated Flex Duct

About This Product

MFG: QuietFlex
MFG#: 410
Our#: 111361
4" X 25' Insulated Flex Duct  - Box of 25 Feet  - The QuietFlex® UV-Inhibited Black Jacket Flex Duct has a UV-inhibited polyethylene vapor barrier.

Insulated flexible ductwork is easy to work with and prevents condensation problems when duct is run through unfinished spaces (attics, crawls, etc).  The insulated jacket also provides sound-dampening benefits to reduce fan/blower noise.

Features: 
  • Galvanized metal core reinforcing
  • R Value - 4.2
  • HUD/FHA standards 515.2.1, Paragraph B
  • NFPA standards 90A and 90B
  • Meets most federal, state, and local codes and standards
  • ETL Listed/Approved
  • Weather resistant packaging\
  • Easy-to-carry package 
  • Oversized core to fit on collars and register boxes
Performance Data:
  • Rated Positive Pressure 10" W.C. per UL 181
  • Rated Negative Pressure 1/2 W.C. per UL 181
  • Velocity - 6,000 FPM
  • Temperature Range:  -20 to 200 degrees F (Intermittent) / -20 to 180 degrees F (Continuous)
  • Flame Spread/Smoke Developed Less than 50

*we recommend that you check with the local code body having jurisdiction in your area to determine applicable codes.
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BathroomFanExperts.com Price:

$24.95

Availability: In Stock

More Optional Accessories

4" X 25' Uninsulated Foil Flex Duct
MFG#: 406
$25.95
Add To Cart

REVIEW SNAPSHOT®

by PowerReviews
QuietFlex4" X 25' Insulated Flex Duct
 
4.5

(based on 53 reviews)

96%

of respondents would recommend this to a friend.

Pros

  • Easy to install (39)
  • Easy to use (30)
  • Durable (24)
  • Attractive (11)

Cons

    Best Uses

    • Bathroom (37)
    • Kitchen (3)
      • Reviewer Profile:
      • Avid do-it-yourselfer (33), Casual do-it-yourselfer (15)

    Reviewed by 53 customers

    Sort by

    Displaying reviews 31-40

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    (0 of 1 customers found this review helpful)

     
    4.0

    Good product at a good price.

    By Bob the Butler

    from Florida

    About Me Casual Do-It-Yourselfer

    Verified Buyer

    Pros

    • Easy To Use

    Cons

      Best Uses

        Comments about QuietFlex 4" X 25' Insulated Flex Duct:

        Nice product that does it's intended job well

         
        5.0

        4" X 25" Insulated Flex Duct

        By forthefunmaggie

        from Wisconsin

        About Me Casual Do-It-Yourselfer

        Verified Buyer

        Pros

        • Durable
        • Easy To Install
        • Easy To Use

        Cons

          Best Uses

          • Bathroom

          Comments about QuietFlex 4" X 25' Insulated Flex Duct:

          Our ceiling fan leaked in our bathroom from condensation and this was exactly what we were looking for. My husband replaced the old duct work with this and it has worked just great. A very easy to use product for a drastic problem. Thank you!!!!

           
          5.0

          4"X25' Insulated Flex Duct

          By Johnny 34

          from warwick RI

          About Me Avid Do-It-Yourselfer

          Verified Buyer

          Pros

          • Attractive Design
          • Durable
          • Easy To Install
          • Easy To Use

          Cons

            Best Uses

            • Marine use heat and ac

            Comments about QuietFlex 4" X 25' Insulated Flex Duct:

            I used this product to replace 4" duct work in my 34' carver boat. Heat and ac duct work ran through the bilge area unconditioned, perfect replacement choice! works great.

            (1 of 2 customers found this review helpful)

             
            5.0

            Nicely made and easy to install

            By Bill the engineer

            from Smithtown, NY

            About Me Avid Do-It-Yourselfer

            Verified Buyer

            Pros

            • Durable
            • Easy To Install
            • Easy To Use

            Cons

              Best Uses

              • Bathroom

              Comments about QuietFlex 4" X 25' Insulated Flex Duct:

              what can you say it's insulated ducting. Did not see similar product at the local big box stores. But it feels like its made of quality materials.

              Only pain in the butt is getting the extra back in the box.

              (0 of 1 customers found this review helpful)

               
              5.0

              looks to be alot better than orig, duct

              By Doug

              from Columbia, SC

              About Me Casual Do-It-Yourselfer

              Verified Buyer

              Pros

              • Durable
              • Easy To Install

              Cons

                Best Uses

                • Bathroom

                Comments about QuietFlex 4" X 25' Insulated Flex Duct:

                Part of replacement project of a shower fan and couple of lights. Orig. duct was cheap 4 in. duct that caused condensation back to old shower fan which discolored drywall on ceiling.

                After I finished work, I pull the old duct work out and it was a moist mildew mess inside.

                (2 of 2 customers found this review helpful)

                 
                4.0

                Well insulated material

                By denny

                from pottsville, PA

                About Me Avid Do-It-Yourselfer

                Verified Buyer

                Pros

                • Durable
                • Easy To Install
                • Easy To Use

                Cons

                  Best Uses

                  • Bathroom

                  Comments about QuietFlex 4" X 25' Insulated Flex Duct:

                  Well insulated product. I would defintely recommend clamps to secure both ends, clamp sizes which allow you to go from 5 1/2" down to maybe 4 1/4". I did not use any metal elbows, and because of out of the way attic install, i was able to make a slow turn. Very happy with product.

                  (0 of 2 customers found this review helpful)

                   
                  5.0

                  Good product.

                  By Ken

                  from Katy, TX

                  About Me Avid Do-It-Yourselfer

                  Verified Buyer

                  Pros

                  • Easy To Install
                  • Easy To Use

                  Cons

                    Best Uses

                      Comments about QuietFlex 4" X 25' Insulated Flex Duct:

                      I used this on a newly installed in-line exhaust fan.

                      (0 of 1 customers found this review helpful)

                       
                      5.0

                      Very Pleased

                      By Bobby

                      from Spokane, WA

                      About Me Casual Do-It-Yourselfer

                      Verified Buyer

                      Pros

                      • Attractive Design
                      • Durable
                      • Easy To Install
                      • Easy To Use

                      Cons

                        Best Uses

                        • Bathroom

                        Comments about QuietFlex 4" X 25' Insulated Flex Duct:

                        Like others have said, it is amazing how much pipe they squeezed into such a small package. Very nice product for venting fans through unconditioned space such as attics and floor joists on multi-level homes.

                        (1 of 2 customers found this review helpful)

                         
                        4.0

                        Good product Does the job

                        By NGNEER

                        from Houston, TX

                        About Me Avid Do-It-Yourselfer

                        Verified Buyer

                        Pros

                        • Durable
                        • Easy To Install
                        • Easy To Use

                        Cons

                          Best Uses

                            Comments about QuietFlex 4" X 25' Insulated Flex Duct:

                            No negatives. Works as it should. Be advised that this ducting is covered with black plastic. If you are looking for a foil covered product, look elsewhere.

                             
                            5.0

                            Great Quality Flex Duct

                            By fanattic

                            from scranton,pa

                            About Me Avid Do-It-Yourselfer

                            Verified Buyer

                            Pros

                            • Attractive Design
                            • Durable
                            • Easy To Install
                            • Easy To Use

                            Cons

                              Best Uses

                              • Bathroom
                              • Kitchen
                              • Living Room

                              Comments about QuietFlex 4" X 25' Insulated Flex Duct:

                              This Quietflex duct is very good quality, in fact the plastic is quite durable and requires a sharp knife to cut. How 24' of duct can come out of a box that is 3' long is amazing.

                              Displaying reviews 31-40

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