Model # F6IFD4X300

Internet #100396934

Store SKU #394317

Store SO SKU #1000683795

4 in. x 25 ft. Insulated Flexible Duct R6 Silver Jacket
0050206922064

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

  • R6 fiberglass insulation for greater insulating power
  • Used for heating, A/C systems and some venting
  • Duct can be cut to length as needed
$ 26 78
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Frequently Bought Together

Frequently Bought Together

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Product Overview

  • R6 fiberglass insulation for greater insulating power
  • Used for heating, A/C systems and some venting
  • Duct can be cut to length as needed
The Master Flow 4 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°F
  • Always install per instructions and seal using approved mastic or sealant (or approved tape)

Product Overview

  • R6 fiberglass insulation for greater insulating power
  • Used for heating, A/C systems and some venting
  • Duct can be cut to length as needed
Model #: F6IFD4X300
Sku #: 394317
Internet #: 100396934

The Master Flow 4 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°F
  • Always install per instructions and seal using approved mastic or sealant (or approved tape)

Info & Guides

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Specifications

Dimensions

Product Depth (in.)
300
Product Diameter (in.)
4 in
Product Height (in.)
7.5
Product Length (in.)
300
Product Width (in.)
7.5
Wall Thickness (in.)
1.75

Details

Color
Silver Jacket
Insulated
Yes
Insulation R-Value
6
Insulator material
Other
Material
Fiberglass
Maximum air flow (CFM)
30
Returnable
90-Day

Warranty / Certifications

Certifications and Listings
2-UL Recognized,ETL Listed

Specifications

Dimensions

Product Depth (in.)
300
Product Diameter (in.)
4 in
Product Height (in.)
7.5
Product Length (in.)
300
Product Width (in.)
7.5
Wall Thickness (in.)
1.75

Details

Color
Silver Jacket
Insulated
Yes
Insulation R-Value
6
Insulator material
Other
Material
Fiberglass
Maximum air flow (CFM)
30
Returnable
90-Day

Warranty / Certifications

Certifications and Listings
2-UL Recognized,ETL Listed

Questions & Answers

Can this be used on a dryer vent

Asked by: Howie
No, check your local codes and the dryer manufacturers instructions for the correct venting guidelines.. Should you have any further questions, Please do not hesitate to contact Master Flow Technical Support at 1-800-211-9612.
Answered by: Master Flow
Date published: 2019-03-23

Can this duct be use for bathroom exhaust fan

Can this duct be use for bathroom exhaust fan
Asked by: Anton
Yes, that's exactly what i used it for. First I tried the non-insulated foil tubing, which was awful and would have promoted condensation inside the cold walls during winter. This is a high quality product that i would definitely recommend. Even if you don't care much about the insulation, it is a very good material and it's 25 feet long so there should be no joints. I used it in an attic, and with insulation around the inner polymer sleeve the moisture should not condense.
Answered by: JFos
Date published: 2019-01-14

Can you use this for microwave venting?

Asked by: DC
I have always hard piped microwaves, used this product for bath exhaust fans!
Answered by: pjs14
Date published: 2018-04-15

Can I connect these to get a longer piece..

Asked by: Rob
Yes, these can be attached to longer pieces using clamps.
Answered by: CommunityAnswer
Date published: 2018-01-27
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Customer Reviews

4 in. x 25 ft. Insulated Flexible Duct R6 Silver Jacket is rated 4.7 out of 5 by 113.
Rated 5 out of 5 by from 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??
Date published: 2018-01-02
Rated 5 out of 5 by from does what it says , word of caution don't open the box till you are ready to use it, if you do it... does what it says , word of caution don't open the box till you are ready to use it, if you do it will expand all over the place , good luck stuffing it back in
Date published: 2019-04-16
Rated 5 out of 5 by from Fast shipping and really comfortable to work with it... Fast shipping and really comfortable to work with it
Date published: 2019-02-12
Rated 4 out of 5 by from 4 Star Review Rating provided by a verified purchaser
Date published: 2019-02-07
Rated 5 out of 5 by from 5 Star Review Rating provided by a verified purchaser
Date published: 2019-02-06
Rated 4 out of 5 by from 4 Star Review Rating provided by a verified purchaser
Date published: 2019-02-07
Rated 5 out of 5 by from 5 Star Review Rating provided by a verified purchaser
Date published: 2019-02-05
Rated 4 out of 5 by from 4 Star Review Rating provided by a verified purchaser
Date published: 2019-02-06
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