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.
Airflow dampers control airflow through duct.
Galvanized Steel | ||||||
|---|---|---|---|---|---|---|
| Duct Size | Male OD | Gauge | End Construction | Blade Material | Each | |
Standard | ||||||
| 7 | 6 3/4" | 20 | Plain | Galvanized Steel | 00000000 | 000000 |
Add damper blades to duct to control airflow.
Galvanized Steel | |||||
|---|---|---|---|---|---|
| Duct Size | Female ID | Gauge | Includes | Each | |
| 7 | 7" | 28 | Handle | 000000 | 000000 |
Galvanized Steel | |||||
|---|---|---|---|---|---|
| Duct Size | Female ID | End Construction | Gauge | Each | |
| 7 | 7" | Plain | 26 | 0000000 | 000000 |
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.
Duct with access panel saves you from having to cut holes or add screws for a traditional cleanout door. The built-in panel slides back and forth, giving you easy access to the inside of the duct.
Opening | Galvanized Steel | |||||||
|---|---|---|---|---|---|---|---|---|
| Duct Size | ID | Lg. | Wd. | Lg. | Gauge | End Construction | Each | |
| 7 | 6 7/8" | 59 1/16" | 7" | 14" | 22 | Rolled | 00000000 | 0000000 |
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. 304 stainless steel is more corrosion resistant than steel.
For technical drawings and 3-D models, click on a part number.
Furnace Draft Dampers
Also known as barometric dampers, these dampers improve furnace performance by automatically opening and closing to maintain a consistent airflow despite changing environmental conditions.
Single-acting dampers open inward to prevent strong drafts from pulling too much heat into the chimney vent.
Double-acting dampers open both inward and outward to relieve pressure caused by obstructions and downdrafts.