MUL Legacy Chamber Silencers

20 to 24 dBA Noise Reduction

Designed for smaller engine applications, the MUL is available in pipe connection sizes 1″ to 3 ½”. Offering semi-critical grade silencing comparable to a model M31, an MUL is suitable for residential areas where background noise is present but not objectionable and engine exhaust noise is desired to match the ambient noise levels.

Typical Applications: Internal combustion engine intakes and exhausts, blower intakes and discharges and vacuum pump discharges


  • Completely welded construction of aluminized steel
  • Easily installed in any position
  • Long service life
  • MNTP pipe connection

Options / Accessories

  • External elbows
  • External tailpipe
  • Stainless steel construction

Attenuation Curves

To download the Maxim MUL spec page click here

Part No* C Size A B Est Wt Drawing
MUL-1 1 4 5/8 14 1/2 6
MUL-1.5 1.5 5 3/4 28 14
MUL-2 2 7 34 1/4 22
MUL-2.5 2.5 8 1/2 42 34
MUL-3 3 10 1/4 46 50
MUL-3.5 3.5 12 50 65
  • All dimensions are in inches. All weights are in pounds. Weights are approximate.
  • Listed sound data is based on typical performance and should not be considered absolute.
  • *See nomenclature guide for additional information on part number creation.

Request for Quote Today!

Fields Marked with * are required

To order or for more information, call us at 800-234-6778 or complete our Contact Form

Silencer Selection & Sizing Program

Find the Right Maxim Exhaust, Wet Exhaust, Intake, Rotary Blower & Vent Silencer for Your Needs

Learn More

Let’s stay
in touch

Sign up to receive Product & Market Updates


Download Silencer