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4" X 25' Insulated Flex Duct image
 
(based on 30 ratings)
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Brand: QuietFlex
Located in: Installation Supplies, Flexible Ductwork, Insulated Flex Duct
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 packagingEasy-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.
More information for the 4" X 25' Insulated Flex Duct
Review Snapshot®
Avg. Customer Rating:
 
4.4 stars
(based on 30 reviews)
97% of respondents would recommend this to a friend.

Customers most agreed on the following attributes:

Pros:
Attractive(5), Durable(15), Easy to install(22), Easy to use(16)
Best Uses:
Bathroom(23)
Describe Yourself:
Avid do-it-yourselfer(18), Casual do-it-yourselfer(9)

[1 of 1 customers found this review helpful]

 
Decent insulated duct
By deweyVerified Purchaser from Northern NJ on 7/28/2010
Pros:
Easy To Use
Best Uses:
Bathroom
Describe Yourself:
Avid Do-It-Yourselfer
Bottom Line:
Yes, I would recommend this to a friend

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

Inner hose is rather thin, and crispy feeling and sounding, with a wire spring that is difficult to cut with small hand tools. Outer jacket seems thick enough, like a really heavy trash bag, just don't snag it on anything. Insulation layer seam is unfinished, so it can easily bunch up to one side, and it is fiberglass so you will be itching later. Overall, works as it should in our bathroom.

 
Don't underestimate how much you need
By EmilioVerified Purchaser from Altadena, CA on 7/17/2010
Bottom Line:
Yes, I would recommend this to a friend

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

I got 25 ft. to do two fans (with three inlets) which are right next to each other, and right next to where they would exhaust. It wasn't enough. For the price, you may as well buy more than what you think you need.

 
easy to install. I am very pleased.
By SchumanVerified Purchaser from St. Louis Missouri on 6/13/2010
Pros:
Easy To Install
Best Uses:
Bathroom
Describe Yourself:
Casual Do-It-Yourselfer
Bottom Line:
Yes, I would recommend this to a friend

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

My bathroom exhaust is quieter, and no moisture or condensation buildup anymore.

[1 of 1 customers found this review helpful]

 
easy to use then metal pipe
By rugratVerified Purchaser from Centerville, WA on 6/8/2010
Pros:
Attractive Design, Durable, Easy To Install, Easy To Use
Best Uses:
Bathroom, Kitchen
Describe Yourself:
Avid Do-It-Yourselfer
Bottom Line:
Yes, I would recommend this to a friend

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

easy to put up for the whole house air system

[0 of 1 customers found this review helpful]

 
good product
By packVerified Purchaser from chicago, il on 6/5/2010
Pros:
Easy To Install
Best Uses:
Basement, Bathroom
Describe Yourself:
Avid Do-It-Yourselfer
Bottom Line:
Yes, I would recommend this to a friend

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

like all flexible duct, it's easy to work with and plus this product is insulated.

 
Flex Duct for Fantech PB110 Fan
By YoyodyneVerified Purchaser from Madison, WI on 5/13/2010
Best Uses:
Bathroom
Describe Yourself:
Casual Do-It-Yourselfer
Bottom Line:
Yes, I would recommend this to a friend

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

Very flexible, insulation is thick but easy to work with. Very nice stuff!

 
Good product and easy to install
By stanmcmctVerified Purchaser from Coventry, CT on 5/11/2010
Pros:
Easy To Install, Easy To Use
Best Uses:
Bathroom
Describe Yourself:
Avid Do-It-Yourselfer
Bottom Line:
Yes, I would recommend this to a friend

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

Product installed as advertised

[0 of 1 customers found this review helpful]

 
Good product at a good price.
By Bob the ButlerVerified Purchaser from Florida on 5/9/2010
Pros:
Easy To Use
Describe Yourself:
Casual Do-It-Yourselfer
Bottom Line:
Yes, I would recommend this to a friend

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

Nice product that does it's intended job well

 
4" X 25" Insulated Flex Duct
By forthefunmaggieVerified Purchaser from Wisconsin on 4/13/2010
Pros:
Durable, Easy To Install, Easy To Use
Best Uses:
Bathroom
Describe Yourself:
Casual Do-It-Yourselfer
Bottom Line:
Yes, I would recommend this to a friend

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!!!!

 
4"X25' Insulated Flex Duct
By Johnny 34Verified Purchaser from warwick RI on 4/9/2010
Pros:
Attractive Design, Durable, Easy To Install, Easy To Use
Best Uses:
Marine use heat and ac
Describe Yourself:
Avid Do-It-Yourselfer
Bottom Line:
Yes, I would recommend this to a friend

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]

 
Nicely made and easy to install
By Bill the engineerVerified Purchaser from Smithtown, NY on 4/6/2010
Pros:
Durable, Easy To Install, Easy To Use
Best Uses:
Bathroom
Describe Yourself:
Avid Do-It-Yourselfer
Bottom Line:
Yes, I would recommend this to a friend

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]

 
looks to be alot better than orig, duct
By DougVerified Purchaser from Columbia, SC on 3/22/2010
Pros:
Durable, Easy To Install
Best Uses:
Bathroom
Describe Yourself:
Casual Do-It-Yourselfer
Bottom Line:
Yes, I would recommend this to a friend

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]

 
Well insulated material
By dennyVerified Purchaser from pottsville, PA on 3/19/2010
Pros:
Durable, Easy To Install, Easy To Use
Best Uses:
Bathroom
Describe Yourself:
Avid Do-It-Yourselfer
Bottom Line:
Yes, I would recommend this to a friend

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]

 
Good product.
By KenVerified Purchaser from Katy, TX on 3/10/2010
Pros:
Easy To Install, Easy To Use
Describe Yourself:
Avid Do-It-Yourselfer
Bottom Line:
Yes, I would recommend this to a friend

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]

 
Very Pleased
By BobbyVerified Purchaser from Spokane, WA on 3/2/2010
Pros:
Attractive Design, Durable, Easy To Install, Easy To Use
Best Uses:
Bathroom
Describe Yourself:
Casual Do-It-Yourselfer
Bottom Line:
Yes, I would recommend this to a friend

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]

 
Good product Does the job
By NGNEERVerified Purchaser from Houston, TX on 2/23/2010
Pros:
Durable, Easy To Install, Easy To Use
Describe Yourself:
Avid Do-It-Yourselfer
Bottom Line:
Yes, I would recommend this to a friend

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.

 
Great Quality Flex Duct
By fanatticVerified Purchaser from scranton,pa on 1/19/2010
Pros:
Attractive Design, Durable, Easy To Install, Easy To Use
Best Uses:
Bathroom, Kitchen, Living Room
Describe Yourself:
Avid Do-It-Yourselfer
Bottom Line:
Yes, I would recommend this to a friend

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.

 
well made
By Bob the plumberVerified Purchaser from Indiana on 12/22/2009
Pros:
Durable, Easy To Install, Easy To Use
Cons:
None
Best Uses:
Bathroom
Describe Yourself:
Casual Do-It-Yourselfer
Bottom Line:
Yes, I would recommend this to a friend

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

Used in attic replacing cheap plastic hose for bathroom exhaust fan. Mouse had chewed it way through cheap hose. Also installed with a inline exhaust fan i purchased here. [...] no problems.

[1 of 1 customers found this review helpful]

 
A time saver
By JohnVerified Purchaser from Mt. Clemens on 12/22/2009
Pros:
Easy To Install, Easy To Use
Best Uses:
Bathroom
Describe Yourself:
Casual Do-It-Yourselfer
Bottom Line:
Yes, I would recommend this to a friend

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

This insulated duct worked very well and saved the time of going to the big box store to try and find something similar. To not have to insulate a rigid duct saved a lot of time although insulating a rigid duct would provide the least air flow resistance. This insulated duct is good stuff. Easy to run and easy to cut. I've read some comments that it is difficult to cut. I can not imagine how anyone other than a complete klutz could not cut this stuff. Use a utility knife to cut the insulation and a wire cutter to cut ONE wire and you're done.

 
good insulated product
By homeownerVerified Purchaser from dyer in on 11/11/2009
Pros:
Durable
Best Uses:
Bathroom
Describe Yourself:
Avid Do-It-Yourselfer
Bottom Line:
Yes, I would recommend this to a friend

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

just what i was looking for , installing this stuff in an attic will always be a pain in the butt, just take your time and it works just fine. i found that using the metal tape from duct-work is easier than using tie straps

 
No Lame Duct
By JackfishVerified Purchaser from Minneapolis, MN on 10/18/2009
Pros:
Durable, Easy To Install
Best Uses:
Bathroom
Describe Yourself:
Casual Do-It-Yourselfer
Bottom Line:
Yes, I would recommend this to a friend

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

Good quality ducting and plenty of it. Watch out when you open the box, it's packed so tightly it practically jumps out at you. Some previous comments have suggested it is difficult to cut through but I have to respectfully disagree. Make your initial cut with a pocket knife or utility knife and then have a side cutter or light-duty tin snips handy to get through the wire inside. Make sure to have some good sized plastic straps on hand to secure it to the fan, housing, etc.

 
jacques976
By jacques976Verified Purchaser from levittown,pa on 8/26/2009
Pros:
Durable, Easy To Install
Best Uses:
Bathroom
Describe Yourself:
Avid Do-It-Yourselfer
Bottom Line:
Yes, I would recommend this to a friend

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

good insulation on duct

[1 of 1 customers found this review helpful]

 
Works great
By FuzzyVerified Purchaser from Woodbury TN on 7/9/2009
Pros:
Durable
Cons:
Difficult To Install, Need a very sharp knife
Best Uses:
Bathroom
Describe Yourself:
Avid Do-It-Yourselfer
Bottom Line:
Yes, I would recommend this to a friend

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

Works great just difficult to cut

 
Don't Recommend
By RickVerified Purchaser from Pinole, CA on 6/17/2009
Pros:
Easy To Install
Cons:
Noisy
Describe Yourself:
Avid Do-It-Yourselfer
Bottom Line:
No, I would not recommend this to a friend

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

Installed easily with a new ultra-low-noise bathroom fan. However, caused a lot of noise. Removed it and replaced with ridgid metal ducting. Solved noise issue.

[1 of 1 customers found this review helpful]

 
Exactly as described
By Paul SVerified Purchaser from Tulsa, OK on 6/17/2009
Pros:
Attractive Design, Durable, Easy To Install
Describe Yourself:
Avid Do-It-Yourselfer
Bottom Line:
Yes, I would recommend this to a friend

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

Good quality, must use wire cutters to snip the inside metal coil. Slightly better quality than the stuff that you can buy in national chain stores - worth adding to your order instead of grabbing locally.

 
Like a trick can of peanuts!
By The average guyVerified Purchaser from North Augusta, SC on 5/4/2009
Best Uses:
Bathroom
Describe Yourself:
Novice
Bottom Line:
Yes, I would recommend this to a friend

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

Must use a very sharp razor to cleanly cut the outer cover.

 
4 inch Great Insulation
By Jerry GraysonVerified Purchaser from Akron Ohio on 2/17/2009
Pros:
Easy To Install
Best Uses:
Bathroom
Describe Yourself:
Avid Do-It-Yourselfer
Bottom Line:
Yes, I would recommend this to a friend

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

No complaints, wish you also sold 3 inch diameter for another fan!

 
Good product
By AJVerified Purchaser from Gaithersburg, MD on 1/2/2009
Pros:
Easy To Install, Easy To Use
Best Uses:
Bathroom
Describe Yourself:
Avid Do-It-Yourselfer
Bottom Line:
Yes, I would recommend this to a friend

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

Product just as described...good value.

 
It's a duct!
By BuckyVerified Purchaser from Texas on 8/1/2008
Pros:
Easy To Install, Easy To Use
Best Uses:
Bathroom
Describe Yourself:
Handyman
Bottom Line:
Yes, I would recommend this to a friend

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

- The flexible duct is tough. It is requires a sharp knife and a set of wire cutters to cut it.
- Worked well for my application.

 
Good Stuff
By DKVerified Purchaser from Pittsburgh, PA on 7/5/2008
Best Uses:
Bathroom
Describe Yourself:
Do-It-Yourself
Bottom Line:
Yes, I would recommend this to a friend

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

Much better bargain than the big box stores, IF you can find it there.

Service & Delivery comments:

Excellent all the way around.

Customer Reviews about the 4" X 25' Insulated Flex Duct at iaqsource.com
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