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Safety Rating: UL® Listed Acoustic Liner
The DuctMuffler™ In-Line Noise Muffler™ reduces noise heard through registers from adjacent rooms or noisy neighbors.
- Available in 6", 8", 10" and 12" diameter
- Does not restrict airflow through duct
- Easy to install
- Maintenance free
- Building Code Compliant, Meets NFPA Standards 90A and 90B
- Acoustic Liner UL®Listed, Class 1 Air Duct
- 1 Year Limited Warranty