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. 304 stainless steel is more corrosion resistant than steel and aluminum.
For technical drawings and 3-D models, click on a part number.
Galvanized Steel | |||||||
|---|---|---|---|---|---|---|---|
| Duct Size | Female ID | Male OD | Includes | End Construction | Gauge | Each | |
Exhaust Vent | |||||||
| 4 | 4" | __ | Damper | Plain | 30 | 00000000 | 000000 |
| 5 | 5" | __ | Damper | Plain | 30 | 00000000 | 00000 |
| 6 | 6" | __ | Damper | Plain | 30 | 00000000 | 00000 |
| 7 | 7" | __ | Damper | Plain | 30 | 00000000 | 00000 |
| 8 | 8" | __ | Damper | Plain | 30 | 00000000 | 00000 |
Intake Vent | |||||||
| 4 | __ | 3 7/8" | Screen | Crimped | 30 | 00000000 | 00000 |
| 5 | __ | 4 7/8" | Screen | Crimped | 30 | 00000000 | 00000 |
| 6 | __ | 5 7/8" | Screen | Crimped | 30 | 00000000 | 00000 |
| 7 | __ | 6 7/8" | Screen | Crimped | 30 | 00000000 | 00000 |
| 8 | __ | 7 7/8" | Screen | Crimped | 30 | 00000000 | 00000 |
Galvanized Steel | 304 Stainless Steel | |||||||
|---|---|---|---|---|---|---|---|---|
| Duct Size | Female ID | End Construction | Gauge | Each | Gauge | Each | ||
| 3 | 3" | Plain | 26 | 0000000 | 000000 | __ | 000000 | 00 |
| 4 | 4" | Plain | 26 | 0000000 | 00000 | 26 | 0000000 | 000000 |
| 5 | 5" | Plain | 26 | 0000000 | 00000 | __ | 000000 | 00 |
| 6 | 6" | Plain | 26 | 0000000 | 00000 | 26 | 0000000 | 00000 |
| 7 | 7" | Plain | 26 | 0000000 | 00000 | __ | 000000 | 00 |
| 8 | 8" | Plain | 26 | 0000000 | 00000 | 26 | 0000000 | 00000 |
| 9 | 9" | Plain | 26 | 0000000 | 00000 | __ | 000000 | 00 |
| 10 | 10" | Plain | 26 | 0000000 | 00000 | 26 | 0000000 | 000000 |
| 12 | 12" | Plain | 26 | 0000000 | 00000 | 26 | 0000000 | 000000 |
Sloped Roof Vent Caps
Cover external vents to reduce downdrafts and prevent obstructions from entering the vent.
For Duct | Painted Steel | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Ht. | Wd. | Dia. | Ht. | Wd. | Lg. | Gauge | Features | Includes | Each | |
For Rectangular and Round Duct | ||||||||||
| 10" | 3 1/4" | 8" | 6 5/8" | 14 1/4" | 18 3/4" | 24 | Bird Screen | Backdraft Damper | 0000000 | 000000 |
Wall Vent Caps
Cover external vents to reduce downdrafts and prevent obstructions from entering the vent.
For Duct | Mounting | Painted Steel | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Ht. | Wd. | Ht. | Wd. | Lg. | Gauge | Features | Includes | Fasteners Included | Hole Dia. | Each | |
For Rectangular Duct | |||||||||||
| 10" | 3 1/4" | 5 5/8" | 12 3/4" | 8 7/8" | 24 | Bird Screen | Backdraft Damper | No | 3/16" | 0000000 | 000000 |
High-Temperature Chimney Vents and Fittings
Built to withstand temperatures up to 1000° F, these vent pipes and fittings are for use with boilers, furnaces, stoves, and other equipment that is fired by gas, oil, wood, or coal.
To join pipes and connectors, twist a male end into a female end and secure with the included locking band.
