Need Help? Call (844) 782-2374

Free Shipping Orders $1500+

Ducting.com - Flexible Hose, Duct and Ducting Specialists
Login / Register
Sign inCreate an Account

Lost your password?

0 items $0.00
Menu
Ducting.com - Flexible Hose, Duct and Ducting Specialists
Search
0 items $0.00
  • Ambient Air
    • Dehumidifier Ducts
    • Heat Ducting
    • HVAC Air Ducts
    • Large Diameter Hose
    • Portable AC Hose
    • Ventilation Ducting
    • Ambient Air Hose Articles
  • Material
    • Anti-Static Hose
    • Dryer Ducts
    • Dust Collection Hose
    • Food Grade Hose
    • Material Handling Hose Articles
  • High Temp
    • Chimney Ducts
    • Flame Retardant Duct
    • Furnace Ducts
    • Hood Ducting
    • Steam Hose
    • Welding Exhaust
    • High Temperature Hose Articles
  • Exhaust
    • Exhaust Ducts
    • Fume Exhaust
    • Mine Ventilation
    • Paint Booth Ducts
    • Semi-Rigid Ducting
  • Abrasives
    • Agricultural Hose
    • Industrial Vacuum Hose
    • Leaf Vacuum Hose
    • Street Sweeper Hose
    • Wood Dust Collection
    • Abrasives Hose Articles
  • Hose Types
    • Aluminum Hose
    • Fabric Hose
    • Fiberglass Hose
    • Insulated Hose
    • Metric Hose
    • Plastic Hose
    • Polyurethane Hose
    • PVC Hose
    • Rubber Hose
    • Silicone Hose
    • Stainless Hose
    • Teflon Hose
    • Hose Types Articles
Aluminum Flex 400 Entry
Aluminum Flex 400 Flex
Aluminum Flex 400 Flex Shot A
Aluminum Flex 400
Aluminum Flex 400 tan in color pointing bottomleft
Aluminum Flex 400 tan in color pointing bottom left
Aluminum Flex 400 Silver in color Cylindrical pointing down
Aluminum Flex 400 Entry
Aluminum Flex 400 Flex
Aluminum Flex 400 Flex Shot A
Aluminum Flex 400
Aluminum Flex 400 tan in color pointing bottomleft
Aluminum Flex 400 tan in color pointing bottom left
Aluminum Flex 400 Silver in color Cylindrical pointing down
Home HVAC Air Ducts “Aluminum Flex 400”
Klear Flex Entry
"Klear Flex" $201.30 – $267.90
Back to products
Silver ducting hose pointing bottomright
"SSti-Flex 1650" $855.00 – $1,990.00

“Aluminum Flex 400”

$139.75 – $250.72

Some Sizes Out of Stock
Temperature Range: -100°F to +400°F
Sizes I.D. (in.): 2, 3, 4, 5, 6, 7, 8, 9, 10, & 12

Weight N/A
Dimensions N/A
ID Size

2" ID, 3" ID, 4" ID, 5" ID, 6" ID, 7" ID, 8" ID, 9" ID, 10" ID, 12" ID

Length

5 ft

Free Shipping

Free shipping only

Clear
Categories: Aluminum Hose, Chimney Ducts, Dehumidifier Ducts, Dryer Ducts, Fume Exhaust, Furnace Ducts, Heat Ducting, Hood Ducting, HVAC Air Ducts, Semi-Rigid Ducting, Short Length, Steam Hose, Ventilation Ducting, Welding Exhaust
Share:
  • Description
  • Reviews
  • Specifications
Description

The “Aluminum Flex 400” hi-temp hoses are great for funneling above ambient industrial air and fume. The metallic silver lightweight hose is constructed from a single-ply, helically corrugated aluminum alloy. The walls of the flexible ducts are constructed using a durable four-ply finished seam that has been folded flat and crimped for binding and strength. With a working temperature range of -100 to + 400 degrees Fahrenheit, these aluminum ducts are built to withstand extreme temperature applications. They are made to resist fatigue, weathering, and most corrosive fumes and chemicals. Aluminum flexible ducts are far more durable than their elastomeric counterparts, even when corrosive fumes are present.

This flexible ductwork is lightweight, pliable and can easily be bent or manipulated by hand. Our aluminum lightweight ducting is self-supporting, which means the hose will maintain its shape when bent. This important attribute helps in the formation of elbows for easy bending and turning during the installation process. This same self-supporting construction allows any bends to remain in place without the use of additional support materials. One thing to keep in mind is that flexible ductwork should not be exposed to repeated bending and moving. Flexible ducts are not recommended for continuous flexing. Hose connectors are also available for the “Aluminum Flex 400” flexible ducts. Use hose connectors (straight unions) to fit additional pieces of hoses together for extra length.

“Aluminum Flex 400” flexible ducts can be purchased in either 5 or 10 ft lengths. The flexible ductwork is available in several internal diameter sizes including 2, 3, 4, 5, 6, 7, 8, 9, 10, and 12 inches with internal diameter tolerances of -0.00 to +0.250 inch. These lightweight ducting can be utilized in a variety of applications that includes removal of the following: chemical fumes, circuit board cooling, exhaust systems, HVAC, oil mist removal, pollution control and ventilation. If you have any questions or need further assistance with these hi-temp hoses, please do not hesitate to contact one of our ducting experts today.

Request a Quote
Click Here

Help Me Find A Hose
Click Here

Request Free Catalog
Click Here

Volume Pricing

Pricing per Unit 1-9 Units 10-19 Units 20-99 Units 100+ Units
2″ ID $139.75 $129.27 $122.28 $115.29
3″ ID $144.07 $133.26 $126.06 $118.86
4″ ID $152.80 $141.34 $133.70 $126.06
5″ ID $165.13 $152.75 $144.49 $136.23
6″ ID $167.02 $154.49 $146.14 $137.79
7″ ID $183.40 $169.65 $160.48 $151.31
8″ ID $191.14 $176.80 $167.25 $157.69
9″ ID $207.79 $192.21 $181.82 $171.43
10″ ID $224.80 $207.94 $196.70 $185.46
12″ ID $250.72 $231.92 $219.38 $206.84

See “Aluminum Flex 400 Hi-Temp Hoses” in Action

Aluminum Flex 400

Urethane Flex General Purpose Black


Expert's Review

Person holding a mug

Our Expert’s Opinion

Robert, an experienced team member, has this to say

thumbs up

Pros

Self-Supporting: Hand bend to a specific shape

Stocked in All Sizes: 5 Foot Lengths stocked – Fast delivery available

Very Durable: Four-ply finished seam

Shipping Costs: Affordable when 5 footers are shipping

Chemical Resistance: Offers good chemical resistance

High Temperature Duct: Rated to 400°F

Thumbs down

Cons

Wear from Flexing: Can experience flex fatigue with repeated movement. Not made for continuous flexing

Not Compressible

Limited Length Options: Only available in 5 or 10 ft lengths

Expensive-to-Ship Size: 10 ft lengths have to ship via truck freight

Better Option Available: Aluminum Flex 280 variety is cheaper, cheaper to ship and just as good of a flex duct option

Reviews

Located below are reviews from customers who have purchased materials from Rubber-Cal. This is a live feed linked to Shopper Approved, which is an independent platform for consumers to post their feedback. Live Feed refreshes every 20 seconds.

Specifications
Product Specifications: pdf icon  Aluminum Flex 400 Specifications
Construction: Single-ply, helically corrugated aluminum alloy wall hose construction with a four-ply finished seam that is folded flat and crimped for tightness and strength.
Product Features:
  • Product is in stock for shipment within 24-hours in 2, 3, 4, 5, 6, 7, 8, 9, 10, and 12 ID’s and in
    5ft. lengths
  • Light weight & hand bendable allowing for elbows and turns to be formed easily during
    installation
  • Self-supporting construction allows for bends to stay in place
  • Designed for extreme temperature applications
  • Resists metal fatigue, weathering, and most corrosive fumes and chemicals
  • Not recommended for continuous flexing
  • Hose connectors available
Applications: Air, Fume.
Temperature Range: - 100 F to + 400 F
Sizes I.D. (inches): 2, 3, 4, 5, 6, 7, 8, 9, 10, and 12
Wall Thickness: 0.008 Inch
ID Tolerances: -0.00 to +0.250 Inch
Standard Length: 5 feet
5-foot sections in stock for same day shipping
Standard Colors: Metallic silver.
End Finish: Plain Cut (connectors available).
Markets: Chemical Fumes, Circuit Board Cooling, Exhaust Systems, HVAC, Oil Mist, Ozone, Pollution Control, Ventilation

Related products

made in USA label
Poly Fabric Flex 2 Ply Entry
Poly Fabric Flex 2 ply Flex Two Hoses

“Poly Fabric Flex – 2 ply”

$310.25 – $911.00
Lead Time 4-6 Weeks Temperature Range: -20°F to +180°F Sizes I.D. (in.): 3, 4, 5, 6, 7, 8, 10, & 12
Select options
Quick view
black ventilator with black strips pointing bottom right
Air Ventilator Black Flex

“Air Ventilator Black”

$146.46 – $550.49
Some Sizes Out of Stock Temperature Range: -20°F to +180°F Sizes I.D. (in.): 4, 6, 8, 10, 12, 14, 16, 18, 20, & 24
Select options
Quick view
made in USA label
Tornado Flex Large Diameter Entry
Tornado Flex Large Diameter Flex

“Tornado-Flex Large Diameter”

$1,847.25 – $8,059.00
Lead Time 4-6 Weeks Temperature Range: -20°F to +180°F Sizes I.D. (in.): 28, 30, 36, 40, 42, & 48
Select options
Quick view
HVAC Insulated Flex Entry
HVAC Insulated Flex in U Shape

“HVAC Insulated-Flex”

$61.50 – $123.50
Temperature Range: -20°F to +160°F Sizes I.D. (in.): 4, 6, 8, 10, & 12
Select options
Quick view
orange air vent with black strips pointing bottomright
air ventilator orange

“Air Ventilator Orange”

$146.46 – $550.49
Some Sizes Out of Stock Temperature Range: -20°F to +180°F Sizes I.D. (in.): 4, 6, 8, 10, 12, 14, 16, 18, 20, & 24
Select options
Quick view

“HVAC Insulated-Flex R-8” Flexible Ductwork

$96.86 – $200.31
Introducing Our New Product – Coming Q1 2026
Currently Out of Stock.
Temperature Range: -20°F to +160°F Sizes I.D. (in.): 4, 6, 8, & 12
Select options
Quick view
made in USA label
Wind Handler WS Large Diameter Entry
Wind Handler WS Large Diameter Flex U Shape

“Wind Handler WS Large Diameter”

$2,812.50 – $12,844.00
Lead Time 4-6 Weeks Temperature Range: -65°F to +250°F Sizes I.D. (in.): 28, 30, 36, 40, 42, 48, & 52
Select options
Quick view
Air Ventilator Yellow Entry
Air Ventilator Yellow U Shaped Pointing Forwards

“Air Ventilator Yellow”

$146.46 – $550.49
Temperature Range: -20°F to +180°F Sizes I.D. (in.): 4, 6, 8, 10, 12, 14, 16, 18, 20, & 24
Select options
Quick view

  • About Us
  • Office Hours
  • Contact Us
  • Catalog Request
  • Quick E Quote
  • FAQs
  • How to Order
  • Return Policy
  • Warranty
  • Site Map
  • Privacy Policy
  • State's Privacy Policy
  • Hose Accessories
    • Hose Downloads
      • Overstock Hoses
        • Short Length Hoses
          • Help Me Find A Hose
  • Facebook
  • LinkedIn
  • Pinterest
  • Twitter
© 1999 - Ducting.com, a Rubber-Cal Brand
  • Ambient Air
    • Dehumidifier Ducts
    • Heat Ducting
    • HVAC Air Ducts
    • Large Diameter Hose
    • Portable AC Hose
    • Ventilation Ducting
    • Ambient Air Hose Articles
  • Material
    • Anti-Static Hose
    • Dryer Ducts
    • Dust Collection Hose
    • Food Grade Hose
    • Material Handling Hose Articles
  • High Temp
    • Chimney Ducts
    • Flame Retardant Duct
    • Furnace Ducts
    • Hood Ducting
    • Steam Hose
    • Welding Exhaust
    • High Temperature Hose Articles
  • Exhaust
    • Exhaust Ducts
    • Fume Exhaust
    • Mine Ventilation
    • Paint Booth Ducts
    • Semi-Rigid Ducting
  • Abrasives
    • Agricultural Hose
    • Industrial Vacuum Hose
    • Leaf Vacuum Hose
    • Street Sweeper Hose
    • Wood Dust Collection
    • Abrasives Hose Articles
  • Hose Types
    • Aluminum Hose
    • Fabric Hose
    • Fiberglass Hose
    • Insulated Hose
    • Metric Hose
    • Plastic Hose
    • Polyurethane Hose
    • PVC Hose
    • Rubber Hose
    • Silicone Hose
    • Stainless Hose
    • Teflon Hose
    • Hose Types Articles
  • Login / Register
Shopping cart
Close
We use cookies to enhance your browsing experience, serve personalized ads or content, and analyze our traffic. By clicking "Accept", you consent to our use of cookies.
Accept
Start typing to see products you are looking for.
My account
0 items Cart
Menu
[]