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Part No.: 3631-Diameter-Length

High Temperature Silicone 2-ply Air Duct Hose, Orange

Silicone Rubber Air Duct Hose is popular for brake cooling ducts due to its high temperature capability (maximum 500° F continuous / 600° F intermittent). The 2-ply construction withstands higher pressure and vacuum than our Single-Ply Silicone Air Duct Hose (Part No. 3621), so it is popular as engine intake plumbing on normally-aspirated applications. 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. Lengths can be screwed together to form a continuous length if you've got leftovers around. Red-orange only.

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
Diameter 2 inch 2.5 Inch 3 Inch 4 Inch 5 Inch
Pressure 22 psi 21 psi 19 psi 16 psi 13 psi
Vacuum 20 in Hg 18 in Hg 16 in Hg 12 in Hg 9 in Hg

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Order Qty
Part Number
Description
Price
Status

3631-2.00-12 FOOT

High Temp Silicone 2-ply Air Duct, 2 inch diameter, 12 ft $106.99 In Stock

3631-2.00-3 FOOT

High Temp Silicone 2-ply Air Duct, 2 inch diameter, 3 ft $30.49 In Stock

3631-2.00-6 FOOT

High Temp Silicone 2-ply Air Duct, 2 inch diameter, 6 ft $56.99 In Stock

3631-2.50-12 FOOT

High Temp Silicone 2-ply Air Duct, 2.5 inch diameter, 12 ft $119.99 In Stock

3631-2.50-3 FOOT

High Temp Silicone 2-ply Air Duct, 2.5 inch diameter, 3 ft $33.99 In Stock

3631-2.50-6 FOOT

High Temp Silicone 2-ply Air Duct, 2.5 inch diameter, 6 ft $63.99 In Stock

3631-3.00-12 FOOT

High Temp Silicone 2-ply Air Duct, 3 inch diameter, 12 foot $134.99 In Stock

3631-3.00-3 FOOT

High Temp Silicone 2-ply Air Duct, 3 inch diameter, 3 foot $38.49 In Stock

3631-3.00-6 FOOT

High Temp Silicone 2-ply Air Duct, 3 inch diameter, 6 foot $71.99 In Stock

3631-4.00-12 FOOT

High Temp Silicone 2-ply Air Duct, 4 inch diameter, 12 ft $162.99 In Stock

3631-4.00-3 FOOT

High Temp Silicone 2-ply Air Duct, 4 inch diameter, 3 ft $45.99 In Stock

3631-4.00-6 FOOT

High Temp Silicone 2-ply Air Duct, 4 inch diameter, 6 ft $86.99 In Stock

3631-5.00-12 FOOT

High Temp Silicone 2-ply Air Duct, 5 inch diameter, 12 ft $197.99 In Stock

3631-5.00-3 FOOT

High Temp Silicone 2-ply Air Duct, 5 inch diameter, 3 ft $56.49 In Stock

3631-5.00-6 FOOT

High Temp Silicone 2-ply Air Duct, 5 inch diameter, 6 ft $105.99 In Stock
     

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  Cooling Air Ducting Hose

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