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Inline Air Duct Noise Silencer (4 inch)



  • Two flanged ends that connect easily to ducting
  • Polyurethane acoustic foam decreases fan noise by up to 50%
  • Easy to install and maintenance free
  • High-quality corrosion resistant galvanized steel sheet construction
  • Moisture resistant – great for use in damp environment


  • Outer Material: Durable galvanized steel sheet
  • Sound Absorbing Foam: Wave crest polyurethane sponge
  • Fusion Point of Foam: 250 degrees centigrade
  • Size: 4” diameter and 12” long


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