Master Flow 5 in. x 25 ft. Insulated Flexible Duct R6 Silver Jacket-F6IFD5X300 - The Home Depot

Master Flow

Model # F6IFD5X300

Internet # 100536641

Store SKU # 392079

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

Master Flow 5 in. x 25 ft. Insulated Flexible Duct R6 Silver Jacket

This item has been discontinued.
The Home Depot no longer carries this specific product.

$26.75 / each


Model # F6IFD5X300

Internet # 100536641

Store SKU # 392079

Store SO SKU # 755578

The Master Flow 5 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 & 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 degrees Fahrenheit
  • Always install per instructions and seal using approved mastic or sealant (or approved tape)

Info & Guides

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Assembled Depth (in.)  300.0 in  Assembled Height (in.)  9 in 
Assembled Width (in.)  9 in  Product Diameter (in.)  5 in 
Product Length (in.)  300 in 
Color  Silver Jacket  Insulated  Yes 
Insulator material  Other  Material  Fiberglass 
Maximum air flow (CFM)  60  R Value 
Returnable  90-Day 
Warranty / Certifications
Certifications and Listings  2-UL Recognized,ETL Listed 


Rated 4.1 out of 5 by 7 reviewers.
Rated 4 out of 5 by just the right size Had a small space to feed ductwork through...two 5" ducts were just the size needed. October 7, 2014
Rated 4 out of 5 by As advertised This seems like a well-made product. I bought it to replace the uninsulated exhaust duct that came with a Delonghi roll-around air conditioner -- a plastic hose that heated the room on the way to the window vent. Now the system is much more efficient. But watch out: the five-inch diameter is unusual, and at first Home Depot shipped me a four-inch duct by mistake. July 9, 2011
Rated 5 out of 5 by As described on site, good price vs HVAC dealer What can I say? It's flex ducting. Good quality, same as at dealers, but less money. Good value in my eyes. Easy to use and install, install instructions on box, and works exactly as it should. August 19, 2014
Rated 5 out of 5 by just what we were looking for great turnaround time and just as described and, the price was right. May 27, 2014
Rated 2 out of 5 by Not quite as described Ultimately, this is a 5" diameter flexible duct wrapped in insulation. However, the flexible duct portion is unusually soft and is prone to being pinched or squished if bent at too severe of an angle, unlike other flexible ducts I've used before. Also, the photo shows a tightly wrapped duct with the insulation adding just a few inches around, while the actual product has nearly a full foot in diameter because of the loosely wrapped insulation. It took quite a bit of maneuvering and duct tape to get this thing down to a size that fit where we needed it. May 28, 2013
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