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.
McAfee Secure sites help keep you safe from identity theft, credit card fraud, spyware, spam, viruses and online scams

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 1-10

    Back to top

    Previous | Next »

     
    5.0

    like this proudct will buy again

    By repairman

    from Booneville, KY.

    Verified Buyer

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

    Real good product easy to install will use product acain

    (1 of 1 customers found this review helpful)

     
    3.0

    It's OK

    By KS

    from Seattle,WA

    About Me Casual Do-It-Yourselfer

    Verified Buyer

    Pros

      Cons

      • Flimsy

      Best Uses

      • Bathroom

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

      I would not recommend this product for short runs of ducting that require some turns. I thought I would need much more ducting and so I ordered this. The insulation is great, but honestly, it's overkill for my use. I could have use semi-rigid or rigid ducting and it would have done a better job. My concern is for the ducting itself. It seems very wimpy and I wonder if it will hold its open shape over time. It probably works great for certain installs but I don't think I made the right choice. I don't regret my purchase, I just think I could have done better.

       
      4.0

      Happy with purchase

      By Tom the beginner

      from Upper Marlboro, MD

      About Me Beginner

      Verified Buyer

      Pros

      • Easy To Install

      Cons

        Best Uses

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

          Much easier to install than if I went with the rigid duct style.

           
          5.0

          Convenient and clean

          By hsu4186

          from Campbell, CA

          About Me Avid 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:

            Was easy to install, and made the job look professionally installed.

             
            3.0

            Nice Product

            By Me

            from Texas

            About Me Casual Do-It-Yourselfer

            Verified Buyer

            Pros

              Cons

                Best Uses

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

                  Ducted from grill in shower, to remote inline fan, to side wall discharge hood

                   
                  5.0

                  Insulated Flex Duct 4" x 25'

                  By Larry

                  from Vienna, VA

                  About Me Avid Do-It-Yourselfer

                  Verified Buyer

                  Pros

                  • Durable
                  • Easy To Install
                  • Easy To Use
                  • Prompt delivery
                  • Tightly bundled package

                  Cons

                    Best Uses

                    • Attic
                    • Bathroom

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

                    I used the product to connect bathroom vent/heater appliances to the roof exhaust vent in order to fix a condensation and backflow issue. Previously, the bathrooms were vented directly into the attic and the duct was nothing more than a thin plastic surrounding a coil. The Quietflex product was well insulated for this purpose and at 25" long it was plenty long enough. Easy to connect with 4" worm clamps and duct tape.

                    (1 of 1 customers found this review helpful)

                     
                    4.0

                    I'd use this flex duct again

                    By renu

                    from Abbotsford BC

                    About Me Avid Do-It-Yourselfer

                    Verified Buyer

                    Pros

                    • Attractive Design
                    • Easy To Use

                    Cons

                      Best Uses

                      • Bathroom

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

                      This is basically the same kind of product as flexible dryer ducting but it has an added outer layer of insulation. It's perfect for running between floor joists to the outside of your home for use with bathroom exhaust fans. It certainly keeps the heat loss to a minimum and is easy to deploy. The only issue I have with this product is that it can be a bit awkward to get the end to slip over a coupling without tearing the inner liner... so be careful.

                      If you use an inline fan this kind of ducting keeps the fan noise to a minimum due to the irregular inside surface. It makes for a quieter bathroom fan as the noise from the fan is muffled somewhat at the air inlet vent when compared to a hard metal pipe duct.

                       
                      5.0

                      product did what it said it would do

                      By radiohead

                      from southeast PA

                      About Me Casual Do-It-Yourselfer

                      Verified Buyer

                      Pros

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

                      Cons

                        Best Uses

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

                          my attic work went so good I had the rest of the day for me.

                          (1 of 1 customers found this review helpful)

                           
                          4.0

                          Works well

                          By The reluctant Mr. Fixit

                          from Lawrence, KS

                          About Me Avid Do-It-Yourselfer

                          Verified Buyer

                          Pros

                            Cons

                              Best Uses

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

                                The product cuts easily with scissors, except for the main spiral support line in the inner duct, which requires a cutter that can handle metal wire. Tin snips, diagonal cutters, or something similar work fine for that. Keep in mind that the outer insulation and the inner duct are not fastened to each other, so they can slide independently. That's useful for installation, but can lead to accidentally cutting one part or the other too short if the slippage goes unnoticed while measuring.

                                25' is a lot of duct. It would be nice if smaller lengths were available.

                                 
                                4.0

                                I would buy this product again

                                By WJD

                                from Kenosha, WI

                                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:

                                  Bathroom Vent Fan discharge, Right product for job.

                                  Displaying reviews 1-10

                                  Back to top

                                  Previous | Next »

                                   
                                  Site Your Order
                                  Copyright 2014 | National Trade Supply, LLC | All Rights Reserved
                                  Company Helpful Info