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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.
Ball Joints
Ball joints create adjustable-angle connections. They are often used to connect duct to duct hose. Hold duct hose in place with a hose clamp (not included).
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.
Ball Joints
Ball joints create adjustable-angle connections.
Galvanized Steel | |||||
|---|---|---|---|---|---|
| Duct Size | ID | Gauge | End Construction | Each | |
| 4 | 3 7/8" | 20 | Rolled | 00000000 | 0000000 |
| 5 | 4 7/8" | 20 | Rolled | 00000000 | 000000 |
| 6 | 5 7/8" | 20 | Rolled | 00000000 | 000000 |
| 7 | 6 7/8" | 20 | Rolled | 00000000 | 000000 |
| 8 | 7 7/8" | 18 | Rolled | 00000000 | 000000 |
| 9 | 8 7/8" | 18 | Rolled | 00000000 | 000000 |
| 10 | 9 7/8" | 18 | Rolled | 00000000 | 000000 |
| 12 | 12" | 16 | Rolled | 00000000 | 000000 |
| 14 | 13 15/16" | 14 | Rolled | 00000000 | 00000000 |