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Hydroponics 4" Inline Fan Duct Noise Muffler Silencer

Hydroponics 4" Inline Fan Duct Noise Muffler Silencer
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In Stock & On Sale Today
Item #:001-7126
Retail Price:$78.99Save:$38.11 (48%)
Your Price:$40.88
Quantity:

Unique open cell foam in interlaced distribution is designed for superior sound absorption. It can stop the spread of sound wave and allow air flow through the ducting, perfect for reducing noise from fans and carbon filter systems.

Features:

  • Two 4" flanged ends.
  • Portable and light weight.
  • Safe and effective operation.
  • Easy to install and maintenance free.
  • High-quality corrosion resistant galvanized sheet construction.
  • Wave crest polyurethane sponge can offer excellent sound and vibration absorption.
  • This high-performance sound absorbing foam lining can reduce 50% noise!
    If the noise of your fan/blower is 50db, our muffler can reduce it to 25db.
  • Moisture resistant - great for use in damp environment.
  • Extended collar and lip for easy duct hook-up.
  • Air tight sealing tape pasted on the muffler

Specification:

    Flange 4"
    Fit for Fans/Blowers 4" Flange
    Surface Material Durable Galvanized Sheet
    Sound Absorbing Foam Wave Crest Polyurethane Sponge
    Fusion Point of Foam 250 degree centigrade

The Influence to Hearing of Different Decibel:

    Decibel Sense of Hearing
    0-20db Very quiet, hardly feel
    20-40db Quiet, like soft voice
    40-60db General, like common talk indoor
    60-70db Noisy, bad for nerve
    70-90db Very noisy, nerve cells are damaged

Package Includes:

  • 1x High-quality 4" Duct Muffler
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