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.
Collars create branches from a rectangular duct. Cut a hole in the duct and use a collar to attach standard duct. Collar with polyethylene gasket is self-sealing because the gasket has an adhesive back. The flange has 1/8" dia. mounting holes.
Galvanized Steel | Galvanized Steel with Polyethylene Foam Gasket | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Duct Size | Female ID | Male OD | End Construction | Gauge | Each | Gauge | Each | ||
Female | |||||||||
| 3 | 3" | __ | Plain | 28 | 0000000 | 00000 | __ | 000000 | 00 |
| 4 | 4" | __ | Plain | 28 | 0000000 | 0000 | __ | 000000 | 00 |
| 5 | 5" | __ | Plain | 28 | 0000000 | 0000 | __ | 000000 | 00 |
| 6 | 6" | __ | Plain | 28 | 0000000 | 0000 | __ | 000000 | 00 |
| 8 | 8" | __ | Plain | 28 | 0000000 | 0000 | __ | 000000 | 00 |
| 10 | 10" | __ | Plain | 28 | 0000000 | 0000 | __ | 000000 | 00 |
| 12 | 12" | __ | Plain | 28 | 0000000 | 00000 | __ | 000000 | 00 |
| 14 | 14" | __ | Plain | 28 | 0000000 | 00000 | __ | 000000 | 00 |
| 16 | 16" | __ | Plain | 28 | 0000000 | 00000 | __ | 000000 | 00 |
| 18 | 18" | __ | Plain | 28 | 0000000 | 00000 | __ | 000000 | 00 |
| 20 | 20" | __ | Plain | 28 | 0000000 | 00000 | __ | 000000 | 00 |
Male | |||||||||
| 3 | __ | 2 7/8" | Crimped | 28 | 0000000 | 0000 | __ | 000000 | 00 |
| 4 | __ | 3 7/8" | Crimped | 28 | 0000000 | 0000 | __ | 000000 | 00 |
| 5 | __ | 4 7/8" | Crimped | 28 | 0000000 | 0000 | 24 | 0000000 | 000000 |
| 6 | __ | 5 7/8" | Crimped | 28 | 0000000 | 0000 | 24 | 0000000 | 00000 |
| 7 | __ | 6 7/8" | Crimped | __ | 000000 | 00 | 24 | 0000000 | 00000 |
| 8 | __ | 7 7/8" | Crimped | 28 | 0000000 | 0000 | 24 | 0000000 | 00000 |
| 10 | __ | 9 7/8" | Crimped | 28 | 0000000 | 0000 | 24 | 0000000 | 00000 |
| 12 | __ | 11 7/8" | Crimped | 28 | 0000000 | 00000 | 24 | 0000000 | 00000 |
| 14 | __ | 13 7/8" | Crimped | 28 | 0000000 | 00000 | 24 | 0000000 | 00000 |
| 16 | __ | 15 7/8" | Crimped | 28 | 0000000 | 00000 | 24 | 0000000 | 00000 |
| 18 | __ | 17 7/8" | Crimped | 28 | 0000000 | 00000 | 24 | 0000000 | 00000 |
| 20 | __ | 19 7/8" | Crimped | 28 | 0000000 | 00000 | __ | 000000 | 00 |
Rectangular Duct and Fittings
Often used in tight spaces, such as in walls and ceilings, rectangular duct allows you to select larger sizes without increasing duct height. Duct and fittings have interconnecting ends that lock together with brackets.
For technical drawings and 3-D models, click on a part number.
