DUCTMUFFLER IN-LINE AIRFLOW SILENCER™

The DuctMuffler™ In-Line Noise Muffler™ reduces noise heard through registers from adjacent rooms or noisy neighbors.

• Does not restrict airflow through duct
• Easy to install
• Maintenance free
• Building Code Compliant, Meets NFPA Standards 90A and 90B
• UL Listed, Class I Air Duct

Sound Reduction

• MODEL NUMBER	DUCT DIAMETER	UNIT LENGTH	SOUND ATTENUATION at 250 Hz in dBA	SOUND ATTENUATION at 500 Hz in dBA	SOUND ATTENUATION at 1000 Hz in dBA
  DM108	8"	24"	9.4	17.1	21.5

Measurements under Standard Laboratory conditions at 180 cm from orifice in dBA.

We reserve the right to change product specifications without notice.

Duct Muffler FAQ's

Installation Instructions*

*We recommend that you read the

installation instructions before your purchase

Duct Muffler Spec Sheet

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