About Duct Connections
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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.
Wye connectors join or split runs of duct.
Galvanized Steel | |||||
|---|---|---|---|---|---|
| Duct Size | ID | Gauge | End Construction | Each | |
| 4 | 3 7/8" | 22 | Rolled | 00000000 | 0000000 |
| 5 | 4 7/8" | 22 | Rolled | 00000000 | 000000 |
| 6 | 5 7/8" | 22 | Rolled | 00000000 | 000000 |
| 7 | 6 7/8" | 22 | Rolled | 00000000 | 000000 |
| 8 | 7 7/8" | 22 | Rolled | 00000000 | 000000 |
| 9 | 8 7/8" | 22 | Rolled | 00000000 | 000000 |
| 10 | 9 7/8" | 22 | Rolled | 00000000 | 000000 |
| 12 | 12" | 22 | Rolled | 00000000 | 000000 |
| 14 | 13 15/16" | 20 | Rolled | 00000000 | 000000 |
| 16 | 16" | 20 | Rolled | 00000000 | 000000 |
Wye connectors join or split runs of duct.
Galvanized Steel | |||||
|---|---|---|---|---|---|
| Duct Size | ID | Gauge | End Construction | Each | |
| 4 | 3 7/8" | 22 | Rolled | 00000000 | 0000000 |
| 5 | 4 7/8" | 22 | Rolled | 00000000 | 000000 |
| 6 | 5 7/8" | 22 | Rolled | 00000000 | 000000 |
| 7 | 6 7/8" | 22 | Rolled | 00000000 | 000000 |
| 8 | 7 7/8" | 22 | Rolled | 00000000 | 000000 |
| 9 | 8 7/8" | 22 | Rolled | 00000000 | 000000 |
| 10 | 9 7/8" | 22 | Rolled | 00000000 | 000000 |
| 12 | 12" | 22 | Rolled | 00000000 | 000000 |
| 14 | 13 15/16" | 20 | Rolled | 00000000 | 000000 |
| 16 | 16" | 20 | Rolled | 00000000 | 000000 |
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.
Reducers connect duct with different diameters.
Duct Size | Female ID | Male OD | Galvanized Steel | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (A) | (B) | (C) | (A) | (B) | (C) | (A) | (B) | (C) | Gauge | End Construction | Each | |
Female × Male × Male | ||||||||||||
| 12 | 10 | 10 | 12" | __ | __ | __ | 9 7/8" | 9 7/8" | 28 | Crimped | 00000000 | 0000000 |
| 14 | 10 | 10 | 14" | __ | __ | __ | 9 7/8" | 9 7/8" | 28 | Crimped | 00000000 | 000000 |
| 16 | 12 | 12 | 16" | __ | __ | __ | 11 7/8" | 11 7/8" | 26 | Crimped | 00000000 | 000000 |
| 16 | 14 | 14 | 16" | __ | __ | __ | 13 7/8" | 13 7/8" | 26 | Crimped | 00000000 | 000000 |
Male × Female × Female | ||||||||||||
| 4 | 3 | 3 | __ | 3" | 3" | 3 7/8" | __ | __ | 26 | Crimped | 00000000 | 00000 |
| 5 | 3 | 4 | __ | 3" | 4" | 4 7/8" | __ | __ | 26 | Crimped | 00000000 | 00000 |
| 5 | 3 | 5 | __ | 3" | 5" | 4 7/8" | __ | __ | 26 | Crimped | 00000000 | 00000 |
| 6 | 3 | 4 | __ | 3" | 4" | 5 7/8" | __ | __ | 26 | Crimped | 00000000 | 00000 |
| 6 | 4 | 4 | __ | 4" | 4" | 5 7/8" | __ | __ | 26 | Crimped | 00000000 | 00000 |
| 6 | 4 | 5 | __ | 4" | 5" | 5 7/8" | __ | __ | 26 | Crimped | 00000000 | 00000 |
| 7 | 5 | 6 | __ | 5" | 6" | 6 7/8" | __ | __ | 26 | Crimped | 00000000 | 00000 |
| 8 | 6 | 6 | __ | 6" | 6" | 7 7/8" | __ | __ | 26 | Crimped | 00000000 | 00000 |
| 10 | 8 | 8 | __ | 8" | 8" | 9 7/8" | __ | __ | 26 | Crimped | 00000000 | 000000 |
| 12 | 8 | 8 | __ | 8" | 8" | 11 7/8" | __ | __ | 26 | Crimped | 00000000 | 000000 |
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.
For technical drawings and 3-D models, click on a part number.
Wye connectors join or split runs of duct.
Galvanized Steel | |||||
|---|---|---|---|---|---|
| Duct Size | Male OD | Gauge | End Construction | Each | |
| 3 | 2 7/8" | 24 | Plain | 00000000 | 0000000 |
| 4 | 3 7/8" | 24 | Plain | 00000000 | 000000 |
| 5 | 4 7/8" | 24 | Plain | 00000000 | 000000 |
| 6 | 5 7/8" | 24 | Plain | 00000000 | 00000 |
| 8 | 7 7/8" | 24 | Plain | 00000000 | 00000 |
| 10 | 9 7/8" | 24 | Plain | 00000000 | 000000 |
| 12 | 11 7/8" | 24 | Plain | 00000000 | 000000 |
| 14 | 13 7/8" | 24 | Plain | 00000000 | 000000 |
| 16 | 15 7/8" | 24 | Plain | 00000000 | 000000 |