Superior Engineering / Superior Construction

  • Patented in 21st Century. Patent 6712888 cites old patents and granted as improvement and advancement in state of the art
  • Filter protected by durable Barrel Housing, not strapped naked under the frame
  • Diverter valve all welded construction, not bolt together contraption sealed with RV caulk
  • Compact - not the size of a canoe
  • No wads of insulation to keep patched or promote exhaust pipes corrosion of

Smoke Blotter® Meets Tough Regulatory Standards

  • Universal Retrofit Each System Doesn't’t Have to be Tailored to Specific Make & Model Engines works on any engine in the city fleet
  • Smoke Blotter® Filter System is tested and listed Legal aftermarket part for all Diesel Engines by Executive Order C.A.R.B. California Board Air Resources old standard for pollution control

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