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.
Open duct can be cut with snips prior to installation. The seam snaps together without tools.
Adjustable-angle elbow connectors can be used at an angle or straight.
Tee connectors join or split runs of duct.
Aluminum | ||||||
|---|---|---|---|---|---|---|
| Trade Size | Female ID | Male OD | Gauge | End Construction | Each | |
Female × Female × Male | ||||||
| 3 | 3" | 2 7/8" | 26 | Crimped | 0000000 | 000000 |
| 4 | 4" | 3 7/8" | 26 | Crimped | 0000000 | 00000 |
| 5 | 5" | 4 7/8" | 26 | Crimped | 0000000 | 00000 |
| 6 | 6" | 5 7/8" | 26 | Crimped | 0000000 | 00000 |
| 7 | 7" | 6 7/8" | 26 | Crimped | 0000000 | 00000 |
| 8 | 8" | 7 7/8" | 26 | Crimped | 0000000 | 00000 |
| 9 | 9" | 8 7/8" | 26 | Crimped | 0000000 | 00000 |
| 10 | 10" | 9 7/8" | 26 | Crimped | 0000000 | 000000 |
| 12 | 12" | 11 7/8" | 26 | Crimped | 0000000 | 000000 |
| 14 | 14" | 13 7/8" | 26 | Crimped | 0000000 | 000000 |
| 16 | 16" | 15 7/8" | 26 | Crimped | 0000000 | 000000 |
| 18 | 18" | 17 7/8" | 26 | Crimped | 0000000 | 000000 |
| 20 | 20" | 19 7/8" | 26 | Crimped | 0000000 | 000000 |
Reducers connect duct with different diameters.
Trade Size | Aluminum | ||||||
|---|---|---|---|---|---|---|---|
| (A) | (B) | Female ID (A) | Male OD (B) | End Construction | Gauge | Each | |
| 4 | 3 | 4" | 2 7/8" | Crimped | 26 | 0000000 | 000000 |
| 5 | 4 | 5" | 3 7/8" | Crimped | 24 | 0000000 | 00000 |
| 6 | 4 | 6" | 3 7/8" | Crimped | 24 | 0000000 | 00000 |
| 7 | 4 | 7" | 3 7/8" | Crimped | 24 | 0000000 | 00000 |
| 7 | 5 | 7" | 4 7/8" | Crimped | 24 | 0000000 | 00000 |
| 8 | 6 | 8" | 5 7/8" | Crimped | 24 | 0000000 | 00000 |
| 10 | 6 | 10" | 5 7/8" | Crimped | 24 | 0000000 | 00000 |
| 10 | 8 | 10" | 7 7/8" | Crimped | 24 | 0000000 | 00000 |
| 12 | 8 | 12" | 7 7/8" | Crimped | 24 | 0000000 | 00000 |
| 12 | 10 | 12" | 9 7/8" | Crimped | 24 | 0000000 | 00000 |
Reducers connect duct with different diameters.
Trade Size | Aluminum | ||||||
|---|---|---|---|---|---|---|---|
| (A) | (B) | Male OD (A) | Female ID (B) | Gauge | End Construction | Each | |
| 4 | 3 | 3 7/8" | 3" | 26 | Crimped | 0000000 | 000000 |
| 5 | 4 | 4 7/8" | 4" | 26 | Crimped | 0000000 | 00000 |
| 6 | 4 | 5 7/8" | 4" | 26 | Crimped | 0000000 | 00000 |
| 7 | 5 | 6 7/8" | 5" | 26 | Crimped | 0000000 | 00000 |
| 8 | 6 | 7 7/8" | 6" | 26 | Crimped | 0000000 | 00000 |
| 10 | 6 | 9 7/8" | 6" | 26 | Crimped | 0000000 | 00000 |
| 10 | 8 | 9 7/8" | 8" | 26 | Crimped | 0000000 | 00000 |
| 12 | 8 | 11 7/8" | 8" | 26 | Crimped | 0000000 | 00000 |
| 12 | 10 | 11 7/8" | 10" | 26 | Crimped | 0000000 | 00000 |
Reducers connect duct with different diameters.
Gas Chimney Vents and Fittings
For use with gas-fired equipment, such as boilers and furnaces, these vent pipes and fittings withstand temperatures up to 400° F. Also known as type B gas vents.
To join pipes and connectors, insert a male end into a female end and secure with the included locking band.
Duct Hose Connectors
Slide these connectors into the ends of duct hose and secure with a clamp.
Aluminum is lightweight.
| For Hose ID | Lg. | Shape | Temperature Range, ° F | Material Thick. | Each | |
Inch | ||||||
|---|---|---|---|---|---|---|
Aluminum | ||||||
| 1" | 4" | Straight | -100° to 400° | 0.04" | 0000000 | 00000 |
| 1 1/2" | 4" | Straight | -100° to 400° | 0.04" | 0000000 | 00000 |
| 1 3/4" | 4" | Straight | -100° to 400° | 0.04" | 0000000 | 00000 |
| 2" | 4" | Straight | -100° to 400° | 0.04" | 0000000 | 00000 |
| 2 1/2" | 4" | Straight | -100° to 400° | 0.04" | 0000000 | 00000 |
| 3" | 4" | Straight | -100° to 400° | 0.04" | 0000000 | 00000 |
| 3 1/2" | 4" | Straight | -100° to 400° | 0.04" | 0000000 | 00000 |
| 4" | 4" | Straight | -100° to 400° | 0.04" | 0000000 | 00000 |
| 4 1/2" | 4" | Straight | -100° to 400° | 0.04" | 0000000 | 00000 |
| 5" | 4" | Straight | -100° to 400° | 0.04" | 0000000 | 00000 |
| 5 1/2" | 4" | Straight | -100° to 400° | 0.04" | 0000000 | 00000 |
| 6" | 4" | Straight | -100° to 400° | 0.04" | 0000000 | 00000 |
| 6 1/2" | 4" | Straight | -100° to 400° | 0.04" | 0000000 | 00000 |
| 7" | 4" | Straight | -100° to 400° | 0.04" | 0000000 | 00000 |
| 8" | 4" | Straight | -100° to 400° | 0.04" | 0000000 | 00000 |
| 9" | 4" | Straight | -100° to 400° | 0.04" | 0000000 | 00000 |
| 10" | 4" | Straight | -100° to 400° | 0.04" | 0000000 | 00000 |
| 12" | 4" | Straight | -100° to 400° | 0.04" | 0000000 | 00000 |
| 14" | 4" | Straight | -100° to 400° | 0.04" | 0000000 | 00000 |
| 16" | 4" | Straight | -100° to 400° | 0.04" | 0000000 | 00000 |
| 18" | 4" | Straight | -100° to 400° | 0.04" | 0000000 | 00000 |
| 20" | 4" | Straight | -100° to 400° | 0.04" | 0000000 | 00000 |