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Duct Noise Reducers

Mount these noise reducers directly to spiral duct to decrease noise by as much as 50%. The rubber gaskets on each end create a tight seal.
For technical drawings and 3-D models, click on a part number.
Overall | Galvanized Steel | ||||||
---|---|---|---|---|---|---|---|
Duct Size | Male OD | Dia. | Lg. | Gauge | Connection Type | Each | |
4 | 3 7/8" | 8 1/4" | 23 5/8" | 24 | Press Fit | 000000 | 0000000 |
5 | 4 7/8" | 9 1/4" | 23 5/8" | 24 | Press Fit | 000000 | 000000 |
6 | 5 7/8" | 10 5/8" | 23 5/8" | 24 | Press Fit | 000000 | 000000 |
8 | 7 7/8" | 12 3/4" | 23 5/8" | 24 | Press Fit | 000000 | 000000 |
10 | 9 7/8" | 14 3/8" | 35 3/8" | 24 | Press Fit | 000000 | 000000 |
12 | 12 3/8" | 16 3/4" | 35 3/8" | 24 | Press Fit | 000000 | 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.
For technical drawings and 3-D models, click on a part number.
Noise Reducers

Galvanized Steel | |||||
---|---|---|---|---|---|
Duct Size | Sound Absorbed | Gauge | End Construction | Each | |
3 | 25% | 20 | Rolled | 00000000 | 0000000 |
4 | 25% | 20 | Rolled | 00000000 | 000000 |
7 | 25% | 20 | Rolled | 00000000 | 00000000 |
8 | 25% | 20 | Rolled | 00000000 | 00000000 |
9 | 25% | 20 | Rolled | 00000000 | 00000000 |
5 | 25% | 20 | Rolled | 00000000 | 000000 |
6 | 25% | 20 | Rolled | 00000000 | 000000 |
10 | 25% | 20 | Rolled | 00000000 | 00000000 |
12 | 25% | 20 | Rolled | 00000000 | 00000000 |
14 | 25% | 20 | Rolled | 00000000 | 00000000 |
16 | 25% | 20 | Rolled | 00000000 | 00000000 |
18 | 25% | 20 | Rolled | 00000000 | 00000000 |
20 | 25% | 20 | Rolled | 00000000 | 00000000 |
22 | 25% | 20 | Rolled | 00000000 | 00000000 |
24 | 25% | 20 | Rolled | 00000000 | 00000000 |