Material Material |
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Finish Finish |
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Connection Type Connection Type |
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Press Fit | Quick- Disconnect Clamp |
DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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About Duct Connections
More
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. PVC-coated steel combines the strength of steel with the corrosion resistance of plastic.
For technical drawings and 3-D models, click on a part number.

Wye connectors join or split runs of duct.
Galvanized Steel | PVC-Coated Steel | ||||||
---|---|---|---|---|---|---|---|
Trade Size | Male OD | Gauge | End Construction | Each | Each | ||
3 | 2 7/8" | 24 | Plain | 00000000 | 0000000 | 000000 | 00 |
4 | 3 7/8" | 24 | Plain | 00000000 | 000000 | 000000 | 00 |
5 | 4 7/8" | 24 | Plain | 00000000 | 000000 | 000000 | 00 |
6 | 5 7/8" | 24 | Plain | 00000000 | 00000 | 00000000 | 0000000 |
8 | 7 7/8" | 24 | Plain | 00000000 | 00000 | 00000000 | 000000 |
10 | 9 7/8" | 24 | Plain | 00000000 | 000000 | 00000000 | 000000 |
12 | 11 7/8" | 24 | Plain | 00000000 | 000000 | 000000 | 00 |
14 | 13 7/8" | 24 | Plain | 00000000 | 000000 | 000000 | 00 |
16 | 15 7/8" | 24 | Plain | 00000000 | 000000 | 000000 | 00 |
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. 304 stainless steel is the most corrosion resistant.
For technical drawings and 3-D models, click on a part number.

Wye connectors join or split runs of duct.
Galvanized Steel | 304 Stainless Steel | ||||||
---|---|---|---|---|---|---|---|
Trade Size | ID | Gauge | End Construction | Each | Each | ||
4 | 3 7/8" | 22 | Rolled | 00000000 | 0000000 | 00000000 | 0000000 |
5 | 4 7/8" | 22 | Rolled | 00000000 | 000000 | 00000000 | 000000 |
6 | 5 7/8" | 22 | Rolled | 00000000 | 000000 | 00000000 | 000000 |
7 | 6 7/8" | 22 | Rolled | 00000000 | 000000 | 00000000 | 000000 |
8 | 7 7/8" | 22 | Rolled | 00000000 | 000000 | 00000000 | 000000 |
9 | 8 7/8" | 22 | Rolled | 00000000 | 000000 | 00000000 | 000000 |
10 | 9 7/8" | 22 | Rolled | 00000000 | 000000 | 00000000 | 000000 |
12 | 12" | 22 | Rolled | 00000000 | 000000 | 00000000 | 000000 |
14 | 13 15/16" | 20 | Rolled | 00000000 | 000000 | 00000000 | 000000 |
16 | 16" | 20 | Rolled | 00000000 | 000000 | 00000000 | 000000 |

Wye connectors join or split runs of duct.
Galvanized Steel | 304 Stainless Steel | ||||||
---|---|---|---|---|---|---|---|
Trade Size | ID | Gauge | End Construction | Each | Each | ||
4 | 3 7/8" | 22 | Rolled | 00000000 | 0000000 | 00000000 | 0000000 |
5 | 4 7/8" | 22 | Rolled | 00000000 | 000000 | 00000000 | 000000 |
6 | 5 7/8" | 22 | Rolled | 00000000 | 000000 | 00000000 | 000000 |
7 | 6 7/8" | 22 | Rolled | 00000000 | 000000 | 00000000 | 000000 |
8 | 7 7/8" | 22 | Rolled | 00000000 | 000000 | 00000000 | 000000 |
9 | 8 7/8" | 22 | Rolled | 00000000 | 000000 | 00000000 | 000000 |
10 | 9 7/8" | 22 | Rolled | 00000000 | 000000 | 00000000 | 000000 |
12 | 12" | 22 | Rolled | 00000000 | 000000 | 00000000 | 000000 |
14 | 13 15/16" | 20 | Rolled | 00000000 | 000000 | 00000000 | 000000 |
16 | 16" | 20 | Rolled | 00000000 | 000000 | 00000000 | 000000 |

Saddles add a branch to an existing run of duct. Cut a hole in the duct and fit the saddle over the hole.
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.
Trade 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 |
Chemical-Resistant Duct and Fittings

Made of PVC plastic to withstand acids, alkalies, salts, and other corrosive vapors and fumes. Use PVC pipe cement (not included) to secure components. Fittings have female ends with a slightly larger diameter to press-fit over duct.
For technical drawings and 3-D models, click on a part number.
Duct Hose Connectors
Slide these connectors into the ends of duct hose and secure with a clamp.
Galvanized steel has fair corrosion resistance.
For technical drawings and 3-D models, click on a part number.

For Hose ID | Lg. | Shape | Temperature Range, ° F | Material Thick. | Each | |
Galvanized Steel | ||||||
---|---|---|---|---|---|---|
3" | 4" | Wye | -100° to 550° | 0.012" | 0000000 | 000000 |
4" | 4" | Wye | -100° to 550° | 0.012" | 0000000 | 00000 |
5" | 4" | Wye | -100° to 550° | 0.012" | 0000000 | 00000 |
6" | 4" | Wye | -100° to 550° | 0.012" | 0000000 | 00000 |
7" | 4" | Wye | -100° to 550° | 0.012" | 0000000 | 00000 |
8" | 4" | Wye | -100° to 550° | 0.012" | 0000000 | 00000 |
10" | 4" | Wye | -100° to 550° | 0.012" | 0000000 | 000000 |
12" | 4" | Wye | -100° to 550° | 0.012" | 0000000 | 000000 |