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Connection Type Connection Type |
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| Press Fit | Quick- Disconnect Clamp |
About Duct Connections
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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.
Male straight connectors are required to connect two pieces of duct.
Female straight connectors join two fittings.
| Trade Size | Female ID | Male OD | End Construction | Gauge | Each | |
Galvanized Steel | ||||||
|---|---|---|---|---|---|---|
Male | ||||||
| 3 | __ | 2 7/8" | Plain | 24 | 0000000 | 00000 |
| 4 | __ | 3 7/8" | Plain | 24 | 0000000 | 0000 |
| 5 | __ | 4 7/8" | Plain | 24 | 0000000 | 0000 |
| 6 | __ | 5 7/8" | Plain | 24 | 0000000 | 0000 |
| 8 | __ | 7 7/8" | Plain | 24 | 0000000 | 0000 |
| 10 | __ | 9 7/8" | Plain | 24 | 0000000 | 0000 |
| 12 | __ | 11 7/8" | Plain | 24 | 0000000 | 0000 |
| 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 | 0000 |
| 12 | 12" | __ | Plain | 24 | 00000000 | 0000 |
| 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 |
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.
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.
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 | Replacement O-Rings | |||||||
|---|---|---|---|---|---|---|---|---|
| Trade Size | ID | Gauge | Max. Sleeve Extension | End Construction | Each | Each | ||
Galvanized Steel | ||||||||
| 4 | 3 15/16" | 22 | 7" | Rolled | 0000000 | 000000 | 00000000 | 00000 |
| 5 | 4 15/16" | 22 | 7" | Rolled | 0000000 | 00000 | 00000000 | 0000 |
| 6 | 6" | 22 | 7" | Rolled | 0000000 | 00000 | 00000000 | 0000 |
| 7 | 7" | 22 | 7" | Rolled | 00000000 | 00000 | 00000000 | 0000 |
| 8 | 8" | 22 | 7" | Rolled | 00000000 | 00000 | 00000000 | 0000 |
| 9 | 9" | 22 | 7" | Rolled | 00000000 | 00000 | 00000000 | 0000 |
| 10 | 10" | 22 | 7" | Rolled | 00000000 | 00000 | 00000000 | 0000 |
| 12 | 12 1/8" | 22 | 7" | Rolled | 00000000 | 00000 | 00000000 | 0000 |
| 14 | 14 1/8" | 20 | 7" | Rolled | 00000000 | 00000 | 00000000 | 0000 |
| 16 | 16 1/8" | 20 | 7" | Rolled | 00000000 | 00000 | 00000000 | 0000 |
304 Stainless Steel | ||||||||
| 4 | 3 15/16" | 22 | 7" | Rolled | 00000000 | 00000 | 00000000 | 0000 |
| 5 | 4 15/16" | 22 | 7" | Rolled | 00000000 | 00000 | 00000000 | 0000 |
| 6 | 6" | 22 | 7" | Rolled | 00000000 | 00000 | 00000000 | 0000 |
| 7 | 7" | 22 | 7" | Rolled | 00000000 | 00000 | 00000000 | 0000 |
| 8 | 8" | 22 | 7" | Rolled | 00000000 | 00000 | 00000000 | 0000 |
| 9 | 9" | 22 | 7" | Rolled | 00000000 | 00000 | 00000000 | 0000 |
| 10 | 10" | 22 | 7" | Rolled | 00000000 | 00000 | 00000000 | 0000 |
| 12 | 12 1/8" | 22 | 7" | Rolled | 00000000 | 00000 | 00000000 | 0000 |
| 14 | 14 1/8" | 20 | 7" | Rolled | 00000000 | 000000 | 00000000 | 0000 |
| 16 | 16 1/8" | 20 | 7" | Rolled | 00000000 | 000000 | 00000000 | 0000 |
Sure-Seal Spiral Duct and Fittings
Gaskets create a tight seal—you don't need to seal joints with coating or tape. Fittings have male ends with a slightly smaller diameter to press-fit into duct. These duct and fittings are compatible with Crush-Resistant Spiral Duct and Fittings.
For technical drawings and 3-D models, click on a part number.
