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High Temp Silicone 2-ply Air Duct Hose, 450F, Orange Only

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Our 2-ply Silicone Rubber Air Duct Hose is popular for brake cooling ducts due to its high temperature capability (maximum 500° F continuous / 600° F intermittent). Lower-temperature applications can use our Neoprene 2-Ply Air Duct Hose (Part No. 3630).

This hose is flexible and pliable, but a bronze coated spring-steel wire support helix prevents it from collapsing. The fiberglass fabric cover and fiberglass cord are both impregnated and coated with silicone rubber. A second layer of silicone covers the inside of the hose to reduce turbulence. The 2-ply construction also withstands higher pressure and vacuum than our Single-Ply Silicone Air Duct Hose (Part No. 3621), so this hose is popular as engine intake plumbing on normally-aspirated applications. Red-orange color only. This silicone duct hose is not made in any other color.

Note: These ducts are manufactured in 12 foot nominal lengths but only measure 12 feet when stretched tightly. The actual lengths will generally measure several inches less than nominal.


Lined Silicone Air Duct Hose Pressure and Vacuum Limits
Inside
Diameter
2 inch 2.5 Inch 3 Inch 4 Inch 5 Inch
Pressure 24 psi 20 psi 19 psi 16 psi 14 psi
Vacuum 20 in Hg 18 in Hg 16 in Hg 13 in Hg 10 in Hg
* For straight lengths of hose at 72° F. Temp range -76° F to +500° F.

Enter desired order quantities below, then click the "Add selected quantities to cart" button.

Order Qty
Part No.
Desc.
Price
Status
1.50 inch Inside Diameter

3631-1.50-3 FOOT
Condition: New
SKU: 81059

High Temp Silicone 2-ply Air Duct, 1.5 inch ID, 3 foot

$43.19In Stock

3631-1.50-6 FOOT
Condition: New
SKU: 81060

High Temp Silicone 2-ply Air Duct, 1.5 inch ID, 6 foot

$81.19In Stock

3631-1.50-12 FOOT
Condition: New
SKU: 81061

High Temp Silicone 2-ply Air Duct, 1.5 inch ID, 12 foot

$152.49In Stock
2.00 inch Inside Diameter

3631-2.00-3 FOOT
Condition: New
SKU: 52022

High Temp Silicone 2-ply Air Duct, 2 inch ID, 3 foot

$45.69In Stock

3631-2.00-6 FOOT
Condition: New
SKU: 52023

High Temp Silicone 2-ply Air Duct, 2 inch ID, 6 foot

$85.99In Stock

3631-2.00-12 FOOT
Condition: New
SKU: 52021

High Temp Silicone 2-ply Air Duct, 2 inch ID, 12 foot

$161.49In Stock
2.50 inch Inside Diameter

3631-2.50-3 FOOT
Condition: New
SKU: 52026

High Temp Silicone 2-ply Air Duct, 2.5 inch ID, 3 foot

$51.99In Stock

3631-2.50-6 FOOT
Condition: New
SKU: 52027

High Temp Silicone 2-ply Air Duct, 2.5 inch ID, 6 foot

$97.99In Stock

3631-2.50-12 FOOT
Condition: New
SKU: 52025

High Temp Silicone 2-ply Air Duct, 2.5 inch ID, 12 ft

$183.99In Stock
3.00 inch Inside Diameter

3631-3.00-3 FOOT
Condition: New
SKU: 52030

High Temp Silicone 2-ply Air Duct, 3 inch ID, 3 foot

$58.99In Stock

3631-3.00-6 FOOT
Condition: New
SKU: 52031

High Temp Silicone 2-ply Air Duct, 3 inch ID, 6 foot

$110.99In Stock

3631-3.00-12 FOOT
Condition: New
SKU: 52029

High Temp Silicone 2-ply Air Duct, 3 inch ID, 12 foot

$207.99In Stock
4.00 inch Inside Diameter

3631-4.00-3 FOOT
Condition: New
SKU: 52018

High Temp Silicone 2-ply Air Duct, 4 inch ID, 3 foot

$71.79In Stock

3631-4.00-6 FOOT
Condition: New
SKU: 52019

High Temp Silicone 2-ply Air Duct, 4 inch ID, 6 foot

$134.99In Stock

3631-4.00-12 FOOT
Condition: New
SKU: 52017

High Temp Silicone 2-ply Air Duct, 4 inch ID, 12 foot

$253.99In Stock
5.00 inch Inside Diameter

3631-5.00-3 FOOT
Condition: New
SKU: 52034

High Temp Silicone 2-ply Air Duct, 5 inch ID, 3 foot

$83.19In Stock

3631-5.00-6 FOOT
Condition: New
SKU: 52035

High Temp Silicone 2-ply Air Duct, 5 inch ID, 6 foot

$156.99In Stock

3631-5.00-12 FOOT
Condition: New
SKU: 52033

High Temp Silicone 2-ply Air Duct, 5 inch ID, 12 foot

$293.99In Stock
 
Related Product Groups
Cooling Air Ducting Hose