About Duct Connections
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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.
For technical drawings and 3-D models, click on a part number.
Straight Connectors
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.
For technical drawings and 3-D models, click on a part number.
Adjustment Sleeves

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 | ||||||||
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Galvanized Steel | Replacement O-Rings | |||||||
Duct Size | ID | Gauge | Max. Sleeve Extension | End Construction | Each | Each | ||
3 | 3 1/8" | 22 | 7" | Rolled | 00000000 | 000000 | 00000000 | 00000 |
4 | 3 15/16" | 22 | 7" | Rolled | 0000000 | 00000 | 00000000 | 0000 |
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 | 00000 |
16 | 16 1/8" | 20 | 7" | Rolled | 00000000 | 00000 | 00000000 | 00000 |
18 | 18" | 20 | 7" | Rolled | 00000000 | 00000 | 00000000 | 00000 |
18 | 18 1/16" | 20 | 7" | Rolled | 00000000 | 000000 | 00000000 | 00000 |
20 | 20" | 20 | 7" | Rolled | 00000000 | 00000 | 00000000 | 00000 |
22 | 22" | 20 | 7" | Rolled | 00000000 | 00000 | 00000000 | 00000 |
24 | 24" | 20 | 7" | Rolled | 00000000 | 000000 | 00000000 | 00000 |