CLEARANCE: Inline Duct Muffler**DOES NOT QUALIFY FOR FREE SHIPPING

• MegaMass Duct Muffler Inline Fan Blower Silencer Noise Reducer
• Perfect for reducing noise from fans and carbon filter systems
• Extended collar and lip for easy duct hook-up
• Moisture resistant - great for use in a damp environment
• Safe and effective operation
• Two flanged ends
• Safe and effective operation
• The thickness of sound absorbing foam has been upgraded to 3-1/4" 
  (that is more effective than 1-1/2" or 2" in the market)
• High-quality corrosion resistant galvanized sheet construction
• Wave crest polyurethane sponge can offer excellent sound and vibration absorption
• Fusion Point of Foam: 250-degree centigrade
• Moisture resistant - great for use in a damp environment
• Extended collar and lip for easy duct hook-up
• Perfect for reducing noise from fans and carbon filter systems
• Package Includes:
  1x Upgraded Duct Muffler W/ Thick Sound Absorbing Foam

Overall Size: 6-1/2" Dia. x 15-3/4" L
Fit for Fans/Blowers: 4" Flange