- R6 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
Free & Easy Returns In Store or Online
Return this item within 90 days of purchase.
Product Details
About This Product
The Master Flow 4 in. x 12 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. It can be used for venting bath fans where insulation is required. The duct is ETL listed, meeting the UL181 standard.
Highlights
- Don't know how much to order? A GAF QuickMeasure report provides all of the measurement data you need when planning your material orders. A complete bill of materials, with Home Depot product SKUs, is provided with each single-family report delivered in under 1 hour. Learn more here. [gaf.com [gaf.com]]
- 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)
- Return Policy
Product Information
Specifications
Dimensions: H 8 in, W 8 in, D 144 in
Dimensions
Product Depth (in.) | 144 in | Product Diameter (in.) | 4 in |
|---|---|---|---|
Product Height (in.) | 8 in | Product Length (in.) | 144 in |
Product Width (in.) | 8 in | Wall Thickness (in.) | 1.5 |
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 | ETL Listed, UL Recognized |
|---|
Questions & Answers
can this be trimmed easily?
Flexible ducts can easily be cut to length. If you have any questions about Master Flow products please email MasterFlowTech@gaf.com
Duct work says max cfm is 30 but my exhaust fan is 80cfm with a 4inch duct. Can this duct be used? Going through unconditioned attic vertically about 3ft from fan. What makes a duct 80cfm capable?
Can I use this to extend the vent hose on a portable air conditioner? I need to cut to custom length to for the portable a/c what would be the best way to connect the original vent to the extended hose?
Can you use this to vent a microwave hood fan
Range hoods and microwave hoods may require hard pipe check your local codes for verification. If you have any inquiries about Master Flow products please email MasterFlowTech@gaf.com
Is R6 enough to not have condensation in the pipe when using this to vent a bathroom fan? I would rather use R8, but it doesn't come in 12 foot. Don't need 25 ft.
There is not a way to tell if the amount of insulation will eliminate the condensation.
Can this be used as an upgrade for better heat flow over the standard foil in a RV flex duct heating system?
it can be used for sure but the reason for RV’s not having this type of insulated duct is to keep heat in the underbelly to stop water lines and tanks from freezing
Does it carry the Proposition 65 Label?
A proposition 65 label is a warning to californians about the exposures to chemical that cause cancer , birth defects.
Can this vent a tankless propane hot water heater?
No
not recommended do to vent is only rated 200 degree.
This is not recommended for venting gas appliances, check the water heaters installation instructions for specific details.
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Customer Reviews
4.5 out of 5
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Customers say the Master Flow 4x12 insulated flexible duct is easy to install and well-insulated, making it ideal for bathroom exhaust applications. Many appreciated its quick delivery and good price, while some noted the challenge of cutting and handling the 12-foot length. Overall, users found it effective in reducing condensation issues, although a few expressed concerns about the thinness of the inner duct material. The product generally meets expectations for quality and performance.
Compare Similar Items
Maximum air flow (CFM) | |||
|---|---|---|---|
30 | 0 | 150 | 30.0 |
Insulated | |||
Yes | No | Yes | Yes |
Product Diameter (in.) | |||
4 in | 4 in | 7 | 4 |
Material | |||
Fiberglass | Aluminum | Fiberglass | Fiberglass |
Product Depth (in.) | |||
144 in | 18.80 in | 300 in | 300 in |
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