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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.
Aluminum is more lightweight than steel and stainless steel and has good corrosion resistance.
For technical drawings and 3-D models, click on a part number.
90° Elbow Connectors
Connectors with welded seams prevent leaks.
Aluminum | |||||||
|---|---|---|---|---|---|---|---|
| Duct Size | Female ID | Male OD | Features | End Construction | Gauge | Each | |
| 3 | 3" | 2 7/8" | Welded Seams | Tapered | 20 | 00000000 | 0000000 |
| 5 | 5" | 4 7/8" | Welded Seams | Tapered | 20 | 00000000 | 000000 |
| 7 | 7" | 5 7/8" | Welded Seams | Tapered | 20 | 00000000 | 000000 |
| 10 | 10" | 9 7/8" | Welded Seams | Tapered | 20 | 00000000 | 000000 |
| 12 | 12" | 11 7/8" | Welded Seams | Tapered | 20 | 00000000 | 000000 |
| 14 | 14" | 13 7/8" | Welded Seams | Tapered | 20 | 00000000 | 000000 |
45° Elbow Connectors
45° Elbow Connector with Welded Seams
Connectors with welded seams prevent leaks.
Aluminum | |||||||
|---|---|---|---|---|---|---|---|
| Duct Size | Female ID | Male OD | Features | End Construction | Gauge | Each | |
| 3 | 3" | 2 7/8" | Welded Seams | Tapered | 20 | 00000000 | 0000000 |
| 5 | 5" | 4 7/8" | Welded Seams | Tapered | 20 | 00000000 | 000000 |
| 7 | 7" | 6 7/8" | Welded Seams | Tapered | 20 | 00000000 | 000000 |
| 10 | 10" | 9 7/8" | Welded Seams | Tapered | 20 | 00000000 | 000000 |
| 12 | 12" | 11 7/8" | Welded Seams | Tapered | 20 | 00000000 | 000000 |
| 14 | 14" | 13 7/8" | Welded Seams | Tapered | 20 | 00000000 | 000000 |
Adjustable-Angle Elbow Connectors, 90° Elbow to Straight
Adjustable-angle elbow connectors can be used at an angle or straight.