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Model #F8IFD12X300

Store SKU #816247

Store SO SKU #1000128584

12 in. x 25 ft. Insulated Flexible Duct R8 Silver Jacket

$11900
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  • R8 fiberglass insulation is perfect for heating and A/C systems
  • Galvanized core wire resists rust and corrosion
  • Insulated duct can withstand up to 200°F
  • View More Details
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Price:
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Product Overview

The Master Flow 12 in. x 25 ft. Insulated Flexible Duct R8 Silver Jacket is used in standard Heating and Air Conditioning (HVAC) systems and some venting applications. The duct has R8 insulation which contains 50% 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.
  • R8 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 degree F
  • Always install per instructions and seal using approved mastic or sealant (or approved tape)

Additional Resources

From the Manufacturer

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BrandMaster FlowMaster FlowMaster Flow
Name12 in. x 25 ft. Insulated Flexible Duct R8 Silver Jacket6 in. x 25 ft. Insulated Flexible Duct R6 Silver Jacket (Pack of 6)8 in. x 25 ft. Insulated Flexible Duct R6 Silver Jacket (Pack of 6)
Price
$11900
$18922
$22012
Ratings
(300)
(303)
(131)
InsulatedYesYesYes
Maximum air flow (CFM)620.0100200
Product Diameter (in.)1268
Insulation R-Value866
MaterialFiberglassFiberglassFiberglass
Product Length (in.)300300300
Product Depth (in.)300300300
Product Height (in.)16.59.511.5
Product Width (in.)16.59.511.5
View ProductView ProductView Product

Specifications

Dimensions

Product Depth (in.)
300
Product Diameter (in.)
12
Product Height (in.)
16.5
Product Length (in.)
300
Product Width (in.)
16.5
Wall Thickness (in.)
2.25

Details

Color
Silver Jacket
Insulated
Yes
Insulation R-Value
8
Insulator material
Other
Material
Fiberglass
Maximum air flow (CFM)
620.0
Returnable
90-Day

Warranty / Certifications

Certifications and Listings
ETL Listed,UL Recognized

Questions & Answers

Typical questions asked about products:

  • Is the product durable?
  • Is the product easy to use?
  • What are the dimensions of the product?

Customer Reviews

  • 4.8
    out of 300 reviews
  • 93%recommend this product
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Showing 1-10 of 300 reviews
Mislabeled box. 7" duct instead of 6"
I'm not sure what the deal was (if someone switched the label or manufacturing error) but the box I bought had a 6in label on it and the ducting ended up being 7in. Unfortunately, I did figure this out until I dragged the box up into the attic and opened it up. At that point it just wasn't worth it to drag it back out and try to cram it all back in the back (it basically springs out once opened). I made it work, but it was still frustrating and made the project just that much harder. So try and double check the sizing of the ducting before you get too deep.
by
    Decent quality. Wish they had higher R ratings available.
    Decent quality. Wish they had higher R ratings available.
    by
    • Verified Purchase
    • Recommended
    3 found this review helpful
    Easy to install with a screwdriver, knife, and wire cutter (needle nose pliers for the wire in th...
    Easy to install with a screwdriver, knife, and wire cutter (needle nose pliers for the wire in the outer shell). It insulates the inner tube from the cold attic in the winter.
    by
    • Verified Purchase
    • Recommended
    1 found this review helpful
    Product is durable and easy to work with.
    I ordered two. Product is durable and easy to work with.
    by
    • Verified Purchase
    • Recommended
    4 found this review helpful
    Product is durable and easy to work with.
    I ordered two. Product is durable and easy to work with. After shaking and pulling, both were 22 ft long not 25 ft. I really missed the extra 6 feet but made it work. I got 2 10" also both were 25ft. Tip:I recycled all the insulation from the old flex duct .
    by
    • Verified Purchase
    • Recommended
    17 found this review helpful
    Good insulation easy to work with....
    Good insulation easy to work with.
    by
    • Verified Purchase
    by
    • Verified Purchase
    Home Depot had a variety of sizes and R-ratings in...
    Home Depot had a variety of sizes and R-ratings in stock. Seemed to be built better than what we had and saved a ton replacing it ourselves. Don’t forget the mastic, tape, and hvac ties!
    by
    • Verified Purchase
    Home Depot had a variety of sizes and R-ratings in...
    Home Depot had a variety of sizes and R-ratings in stock. Seemed to be built better than what we had and saved a ton replacing it ourselves. Don’t forget the mastic, tape, and hvac ties!
    by
    • Verified Purchase
    by
    • Verified Purchase
    Showing 1-10 of 300 reviews