Sku: LAS002003
Product Type: Air Purification
Air Purification
• Payment Cleared before 12pm PST will be shipped out in the same business day (Pre-Orders Excepted).
30-Day Warranty & Return Policy

This is a brand new Upgraded Inline Duct Muffler with size optional 4"/ 6"/ 8" for 4"/ 6"/ 8" high velocity fans/blowers. With durable galvanized sheet construction and sound absorbing foam lining, our duct muffler can reduce noise effectively and prevent your health from being hurt by noise. The special designed open cell foam in a convoluted pattern as egg crate is good for superior sound absorption. It can stop the spread of sound wave and allow air flow get through the ducting, perfect for reducing noise from fans and carbon filter systems. Make your indoor gardening fan obviously quieter.


  • Upgraded inline duct muffler for 8" flange high velocity fans, with sound absorbing foam lining to reduce noises from fan and carbon filter systems in grow room
  • Effective Sound Absorption - Egg-like wave crest polyurethane sponge for good sound and vibration absorption when air flow through the ducting, making a comfortable environment
  • Moist-Resistance - Stainless-steel sheet housing for anti-corrosion , great in damp environment
  • Easy Installation - Extended collar and lip for easy duct hook-up 
  • Use Suggestion - To connect with the muffler and fan through ducts
  • Ideal for Heating, Ventilation and Air Conditioning System, to deliver air in grow tent, greenhouse and grow room


  • Flange Diameter: 8"
  • Fit for Fans/Blowers: 8" Flange
  • Material: Stainless-steel
  • Sound Absorbing Foam: Wave Crest Polyurethane Sponge
  • Fusion Point of Foam: 250 degree centigrade
  • Overall Dimension(DxH): 11" x 24" 
  • Net Weight: 7.9 Lbs (3.59 kg)

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
90-100db Noisy intensify, hearing is damaged

    Package Includes:

    • 1x Upgraded Duct Muffler With Thick Sound Absorbing Foam
    • Free UPS standard shipping on all US orders (lower 48 States)
    • Orders before 12pm. PST will be shipped out in the same business day(Pre-Orders Excepted). Usually will be delivered in 2-5 business days for the lower 48 States.

    • We are currently not allowing any Local Pickups. All orders will need to be placed online for shipment. If assistance is needed, please do not hesitate to contact us at (1-888-525-9222). We appreciate your understanding.

    • Additional Shipping Fees for Expedited Shipping and DHL Worldwide Service

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