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Finish Finish |
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OD OD |
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Component Component |
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Connection Type Connection Type |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement)  |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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About Duct Connections
More
Standard Duct and Fittings
No need for clamps or connectors—duct and fittings press-fit together. Male ends are crimped or tapered, making them slightly smaller than a female end for simple assembly.
Galvanized steel has good corrosion resistance. 304 stainless steel is more corrosion resistant than steel and aluminum.
For technical drawings and 3-D models, click on a part number.
Closed duct is stronger than open duct because it has a seam that is already locked in place.
Crush-Resistant Spiral Duct and Fittings
A spiral seam makes this duct strong and rigid. Fittings have male ends with a slightly smaller diameter to press-fit into duct.
Galvanized steel has good corrosion resistance. PVC-coated steel combines the strength of steel with the corrosion resistance of plastic. 304 stainless steel is more corrosion resistant than steel.
For technical drawings and 3-D models, click on a part number.
PVC-Coated Steel | 304 Stainless Steel | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Duct Size | Female ID | End Construction | Gauge | 5 ft. | Gauge | 2 ft. | 5 ft. | ||
| 4 | 4" | Plain | 26 | 00000000 | 000000 | 24 | 00000000 | ||
| 5 | 5" | Plain | 26 | 00000000 | 000000 | __ | 000000 | ||
| 6 | 6" | Plain | 26 | 00000000 | 000000 | 24 | 00000000 | ||
| 7 | 7" | Plain | 26 | 00000000 | 000000 | __ | 000000 | ||
| 8 | 8" | Plain | 26 | 00000000 | 000000 | 24 | 00000000 | ||
| 9 | 9" | Plain | 26 | 00000000 | 000000 | __ | 000000 | ||
| 10 | 10" | Plain | 26 | 00000000 | 000000 | 24 | 00000000 | ||
| 12 | 12" | Plain | 26 | 00000000 | 000000 | __ | 000000 | ||
Male straight connectors are required to connect two pieces of duct.
Female straight connectors join two fittings.
| Duct Size | Female ID | Male OD | End Construction | Gauge | Each | |
Galvanized Steel | ||||||
|---|---|---|---|---|---|---|
Male | ||||||
| 3 | __ | 2 7/8" | Plain | 24 | 0000000 | 000000 |
| 4 | __ | 3 7/8" | Plain | 24 | 0000000 | 00000 |
| 5 | __ | 4 7/8" | Plain | 24 | 0000000 | 00000 |
| 6 | __ | 5 7/8" | Plain | 24 | 0000000 | 00000 |
| 8 | __ | 7 7/8" | Plain | 24 | 0000000 | 00000 |
| 10 | __ | 9 7/8" | Plain | 24 | 0000000 | 00000 |
| 12 | __ | 11 7/8" | Plain | 24 | 0000000 | 00000 |
| 14 | __ | 13 7/8" | Plain | 22 | 0000000 | 00000 |
| 16 | __ | 15 7/8" | Plain | 22 | 0000000 | 00000 |
Female | ||||||
| 3 | 3" | __ | Plain | 24 | 00000000 | 0000 |
| 4 | 4" | __ | Plain | 24 | 00000000 | 0000 |
| 5 | 5" | __ | Plain | 24 | 00000000 | 0000 |
| 6 | 6" | __ | Plain | 24 | 00000000 | 0000 |
| 8 | 8" | __ | Plain | 24 | 00000000 | 0000 |
| 10 | 10" | __ | Plain | 24 | 00000000 | 00000 |
| 12 | 12" | __ | Plain | 24 | 00000000 | 00000 |
| 14 | 14" | __ | Plain | 22 | 00000000 | 00000 |
| 16 | 16" | __ | Plain | 22 | 00000000 | 00000 |
PVC-Coated Steel | ||||||
Male | ||||||
| 4 | __ | 3 7/8" | Plain | 26 | 00000000 | 00000 |
| 5 | __ | 4 7/8" | Plain | 26 | 00000000 | 00000 |
| 6 | __ | 5 7/8" | Plain | 26 | 00000000 | 00000 |
| 7 | __ | 6 7/8" | Plain | 26 | 00000000 | 00000 |
| 8 | __ | 7 7/8" | Plain | 26 | 00000000 | 00000 |
| 9 | __ | 8 7/8" | Plain | 26 | 00000000 | 00000 |
| 10 | __ | 9 7/8" | Plain | 26 | 00000000 | 00000 |
| 12 | __ | 11 7/8" | Plain | 26 | 00000000 | 00000 |
304 Stainless Steel | ||||||
Male | ||||||
| 4 | __ | 3 7/8" | Plain | 24 | 0000000 | 00000 |
| 6 | __ | 5 7/8" | Plain | 24 | 0000000 | 00000 |
| 8 | __ | 7 7/8" | Plain | 24 | 0000000 | 00000 |
| 10 | __ | 9 7/8" | Plain | 24 | 0000000 | 00000 |
Collars create branches from a rectangular duct. Cut a hole in the duct and use a collar to attach spiral duct.
Galvanized Steel | ||||||
|---|---|---|---|---|---|---|
| Duct Size | Male OD | Gauge | Gasket Material | End Construction | Each | |
Collar | ||||||
| 4 | 3 7/8" | 24 | Polyethylene Foam | Plain | 0000000 | 000000 |
| 5 | 4 7/8" | 24 | Polyethylene Foam | Plain | 0000000 | 00000 |
| 6 | 5 7/8" | 24 | Polyethylene Foam | Plain | 00000000 | 00000 |
| 8 | 7 7/8" | 24 | Polyethylene Foam | Plain | 00000000 | 00000 |
| 10 | 9 7/8" | 24 | Polyethylene Foam | Plain | 00000000 | 00000 |
| 12 | 11 7/8" | 24 | Polyethylene Foam | Plain | 00000000 | 00000 |
| 14 | 13 7/8" | 24 | Polyethylene Foam | Plain | 00000000 | 00000 |
| 16 | 15 7/8" | 24 | Polyethylene Foam | Plain | 00000000 | 00000 |
Chemical-Resistant Duct and Fittings
Made of PVC plastic to withstand acids, alkalies, salts, and other corrosive vapors and fumes. Use PVC pipe cement (not included) to secure components. Fittings have female ends with a slightly larger diameter to press-fit over duct.
For technical drawings and 3-D models, click on a part number.
Quick-Disconnect Duct and Fittings
Join duct and fittings with quick-release clamps for faster disassembly and cleanout than other duct systems.
Galvanized steel has good corrosion resistance. 304 stainless steel is the most corrosion resistant.
For technical drawings and 3-D models, click on a part number.
Galvanized Steel | 304 Stainless Steel | |||||||
|---|---|---|---|---|---|---|---|---|
| Duct Size | ID | Lg. | Gauge | End Construction | Each | Each | ||
| 4 | 3 7/8" | 59" | 22 | Rolled | 0000000 | 000000 | 00000000 | 0000000 |
| 5 | 4 7/8" | 59" | 22 | Rolled | 000000 | 00 | 00000000 | 000000 |
| 6 | 5 7/8" | 59" | 22 | Rolled | 000000 | 00 | 00000000 | 000000 |
| 8 | 7 7/8" | 59" | 22 | Rolled | 00000000 | 00000 | 00000000 | 000000 |
| 10 | 9 7/8" | 59" | 22 | Rolled | 00000000 | 000000 | 00000000 | 000000 |
| 12 | 12" | 59" | 22 | Rolled | 00000000 | 000000 | 00000000 | 000000 |
| 14 | 13 15/16" | 59" | 20 | Rolled | 00000000 | 000000 | 000000 | 00 |
| 16 | 15 15/16" | 59" | 20 | Rolled | 00000000 | 000000 | 000000 | 00 |
Adjustment sleeves extend your duct length. Cut duct, then slide on the sleeve. They include an o-ring for the clamp to grasp.
Adjustment Sleeves | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Galvanized Steel | 304 Stainless Steel | Replacement O-Rings | ||||||||
| Duct Size | ID | Gauge | Max. Sleeve Extension | End Construction | Each | Each | Each | |||
| 4 | 3 15/16" | 22 | 7" | Rolled | 0000000 | 000000 | 00000000 | 000000 | 00000000 | 00000 |
| 5 | 4 15/16" | 22 | 7" | Rolled | 0000000 | 00000 | 00000000 | 00000 | 00000000 | 0000 |
| 6 | 6" | 22 | 7" | Rolled | 0000000 | 00000 | 00000000 | 00000 | 00000000 | 0000 |
| 7 | 7" | 22 | 7" | Rolled | 00000000 | 00000 | 00000000 | 00000 | 00000000 | 0000 |
| 8 | 8" | 22 | 7" | Rolled | 00000000 | 00000 | 00000000 | 00000 | 00000000 | 0000 |
| 9 | 9" | 22 | 7" | Rolled | 00000000 | 00000 | 00000000 | 00000 | 00000000 | 0000 |
| 10 | 10" | 22 | 7" | Rolled | 00000000 | 00000 | 00000000 | 00000 | 00000000 | 0000 |
| 12 | 12 1/8" | 22 | 7" | Rolled | 00000000 | 00000 | 00000000 | 000000 | 00000000 | 0000 |
| 14 | 14 1/8" | 20 | 7" | Rolled | 00000000 | 00000 | 00000000 | 000000 | 00000000 | 00000 |
| 16 | 16 1/8" | 20 | 7" | Rolled | 00000000 | 00000 | 00000000 | 000000 | 00000000 | 00000 |