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 /each
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Frequently Bought Together

Frequently Bought Together

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: 2018-06-11

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: 2018-11-05

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 4.6 out of 5 by 95.
Rated 5 out of 5 by from Put together well, good quality and good instructions. ... Put together well, good quality and good instructions.
Date published: 2018-11-06
Rated 3 out of 5 by from I ordered two of these. One was fine. On the... I ordered two of these. One was fine. On the other one, the inner duct was short on one end, so about 8 ft was useless. I didn't realize this until after I had run it through a maze in my attic.
Date published: 2018-11-06
Rated 4 out of 5 by from It worked for my needs. It was a little pricey for just being thin flex tubing. Hope it holds up ... It worked for my needs. It was a little pricey for just being thin flex tubing. Hope it holds up thats all I want it to do.
Date published: 2018-10-30
Rated 5 out of 5 by from Bought a box of 25ft, Would have rather bought a... Bought a box of 25ft, Would have rather bought a smaller box. Stuff is perfect to work with and clear instructions on the box with how and were to cut.
Date published: 2018-10-13
Rated 5 out of 5 by from This insulated duct should help with my attic issues. ... This insulated duct should help with my attic issues. It is pretty easy to work with if you have a sharp knife/razor. I just wish it was available in shorter lengths. 30' is way more than I need.
Date published: 2018-10-03
Rated 5 out of 5 by from Cuts clean, appears to be good quality. This was used for bathroom vent exhaust through attic. HV... Cuts clean, appears to be good quality. This was used for bathroom vent exhaust through attic. HVAC taped to duct and the zip tied insulation around it.
Date published: 2018-10-02
Rated 5 out of 5 by from Easy to install. You need to have the silver... Easy to install. You need to have the silver colored tape to make a sound install.
Date published: 2018-10-02
Rated 5 out of 5 by from I used it to increase the number of return return registers on my second floor Worked like a charm I used it to increase the number of return return registers on my second floor Worked like a charm
Date published: 2018-09-26
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