Model # F6IFD8X300

Internet #100396936

Store SKU #685764

Store SO SKU #1000683050

Master Flow 8 in. x 25 ft. Insulated Flexible Duct R6 Silver Jacket
0050206922446

Master Flow

8 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
$3421 /each
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Installation Options

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 8 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 #: F6IFD8X300
Sku #: 685764
Internet #: 100396936

The Master Flow 8 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.)
8 in
Product Height (in.)
11.5
Product Length (in.)
300
Product Width (in.)
11.5
Wall Thickness (in.)
1.75

Details

Color
Silver Jacket
Insulated
Yes
Insulation R-Value
6
Insulator material
Other
Material
Fiberglass
Maximum air flow (CFM)
200
Returnable
90-Day

Warranty / Certifications

Certifications and Listings
2-UL Recognized,ETL Listed

Specifications

Dimensions

Product Depth (in.)
300
Product Diameter (in.)
8 in
Product Height (in.)
11.5
Product Length (in.)
300
Product Width (in.)
11.5
Wall Thickness (in.)
1.75

Details

Color
Silver Jacket
Insulated
Yes
Insulation R-Value
6
Insulator material
Other
Material
Fiberglass
Maximum air flow (CFM)
200
Returnable
90-Day

Warranty / Certifications

Certifications and Listings
2-UL Recognized,ETL Listed

Questions & Answers

Will the insulation help with reducing sound between rooms? Looking to install this in return air...

Will the insulation help with reducing sound between rooms? Looking to install this in return air that runs between above-garage-apartment and the main house through the attic and want to make sure sound doesn't carry from one room the the other.
Asked by: Landlord
We installed this under our kitchen floor and don't hear a thing from it. Of course there is R 30 insulation under the floor.
Answered by: DD
Date published: 2018-01-07

Is this the best duct material for venting a dryer through the roof?

Asked by: Nan
No, there's no reason for the dryer duct to be insulated, plus at 8" it's bigger than just about every dryer duct I've seen. You'll want something 4" in diameter.
Answered by: kaveman44
Date published: 2018-06-27

is it beneficial to go from 6in duct to 8incj duct

Asked by: Markyd
Unless you need more return air, it's not going to benefit you moving up from 6" to 8" duct work. Having an HVAC professional give you a free calculation would help, or there might be some websites to help. To move from 6" to 8" duct work, you would want to change the registers to have a larger collars or you're not doing all that much for your HVAC unit.
Answered by: kaveman44
Date published: 2018-06-27

Can this be used for the inlet side of a Furness or will it collaps?

Asked by: MIKE
If you mean, can you use it for return air ducting to your forced air unit, yes. It won't collapse.
Answered by: larrythelogger
Date published: 2018-05-15
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Customer Reviews

8 in. x 25 ft. Insulated Flexible Duct R6 Silver Jacket is rated 4.9 out of 5 by 48.
Rated 5 out of 5 by from Excellent product I was a bit wary of flexible ducting as some of the existing, older, flex duct in my attic was torn and crushed. I had intended to replace this with round metal duct and then insulate the outside of it. However, I spoke to a friend in the HVAC business and he said that flex duct is now the standard for short (less than 12 ft.) runs. He said that it is actually fine for longer runs provided it is run straight and pulled taut to remove slack. Armed with this advice I purchase some of the 8 in. duct. The installation was a snap - took me about 15 minutes. It would have taken me at least 2 or 3 hours to run and insulate metal duct. Provided you use zip ties and plenty of foil tape at your connections, this product is very sturdy and effective. I intend to replace my remaining round ductwork with this product prior to having my attic insulated with blown-in insulation.
Date published: 2009-10-01
Rated 5 out of 5 by from For a DIY'er like myself, this duct is simple to install. I have 4/12 pitch roof so there's not a... For a DIY'er like myself, this duct is simple to install. I have 4/12 pitch roof so there's not a lot of space in my attic. I used two pieces and cut a hole in my plenum to run to an addition (yes, I got advice from a heating and air contractor before adding another load to my FAU a/c and heating. It easily handles the new room). This is why I like HD. I can learn how to do things myself and save a ton of money on labor.
Date published: 2018-05-15
Rated 1 out of 5 by from The actual flexible plastic duct material is so thin that... The actual flexible plastic duct material is so thin that the duct had split, separated, and collapsed inside of the insulated jacket while we were installing it. I can’t believe companies can’t spend a little extra money to make something that will last beyond shipping and unboxing.
Date published: 2018-07-13
Rated 5 out of 5 by from This ducking is awesome. Our master bedroom did not have enough air movement especially in the s... This ducking is awesome. Our master bedroom did not have enough air movement especially in the summer. I added an additional duct using this stuff for a retro fit and it was much easier than traditional ducting.
Date published: 2018-05-15
Rated 5 out of 5 by from It was the perfect size and length for my air... It was the perfect size and length for my air return addition. To open up the circulation for the master bedroom. It is working fantastic.
Date published: 2018-06-26
Rated 4 out of 5 by from Good product at a reasonable price. Easily installed when... Good product at a reasonable price. Easily installed when pulled from box - check that you open the correct end!
Date published: 2018-06-06
Rated 5 out of 5 by from Easy to work with , no surprises.. good product... Easy to work with , no surprises.. good product
Date published: 2018-07-17
Rated 4 out of 5 by from Not much to say. It is ducting. It... Not much to say. It is ducting. It works.
Date published: 2018-06-26
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