RAC2 Residential Catalytic Silencers

20 to 25 dBA Noise Reduction

The RAC2 provides customizable emission reduction combined with Maxim’s best silencing technologies. RAC2 delivers residential grade silencing for noise sensitive applications. The RAC is designed to require one wrench access cover removal for easy servicing of elements. Attenuation rating is with one catalyst element installed. Maxim Silencers are proudly made in the USA.

Highly Efficient Emission Reduction

  • Three-Way (NOx, CO, NMHC, HcHo)
  • Oxidation (CO, NMHC, HcHo)
  • Diesel Oxidation (CO, NMHC, PM)

Typical applications: Gas reciprocating internal combustion engines, natural gas compression packages, electrical power generation, and engine driven pumps


  • Hinged or removable access cover
  • Gasket free seal between catalytic core and housing
  • One wrench to remove access cover
  • Advanced acoustical design
  • Heavy duty, all welded construction and long service life
  • High temperature prime coated exterior finish
  • Multiple sample ports and separate element monitoring
  • Top or side facing door arrangement
  • Test ports per EPA and TCEQ guidelines

Options / Accessories

  • Stainless steel construction: 304 or 316
  • Flexible connectors
  • Companion flanges
  • Cleanout openings
  • Side inlet and outlet
  • Horizontal or vertical support arrangements
  • Top or side facing door arrangement
  • Custom sizing
  • Explosion relief cover
  • Special paints and finishes available
  • Installs up to two NSCR Three-Way, Oxidation or Diesel Oxidation elements
  • Complete range of exhaust accessories

Attenuation Curves

To download the Maxim RAC2 spec page click here

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Fields Marked with * are required

Listed sound data is based on typical performance and should not be considered absolute.

*See nomenclature guide for additional information on part number creation.

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

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