March 2018

The list below shows MECA suppliers of diesel retrofit emission control devices for the control of PM and/or NOx emissions.

Note: For the current list of U.S. EPA/California ARB verified diesel retrofit products, click on the respective link below:


DCL International

Mr. Joe Aleixo

Director, Commercial Technology
140 Cidermill Avenue
Concord, Ontario L4K 4T5 Canada
Phone: (905) 660-6450
Fax: (905) 660-6435
Technology: DOC, FTF, DPF, SCR

ESW Group

Mr. Virendra Kumar

200 Progressive Drive
Montgomeryville, PA 18936 USA
Phone: (215) 699-0730
Technology: DOC, DPF (passive and active), FTF, CWMF

Hug Engineering, Inc.

Mr. Peter Bruenke

Director, Sales & Marketing
312 Mustang Mesa
Liberty Hill, TX 78642 USA
Phone: (512) 548-6710
Secondary Phone: (323) 315-0290 (California office)
Fax: (323) 315-4290 fax (California office)
Technology: DPF, SCR

Johnson Matthey

Ms. Melanie Pastore

Regional Account Representative
900 Forge Avenue, Suite 100
Audubon, PA 19403 USA
Phone: (484) 320-2240
Fax: (484) 320-2306
Technology: DOC, DPF (passive and active), FTF, DPF + EGR, DOC + SCR, DPF + SCR

Nett Technologies

Mr. Wayne Moffat

Senior Technical Sales Manager
2-6707 Goreway Drive
Mississauga, Ontario LAV 1P7 Canada
Phone: (800) 361-6388
Fax: (905) 672-5949
Technology: DOC, DPF (passive and active), FTF, SCR, SCR + DOC, SCR + FTF, SCR + DPF


CCV – crankcase ventilation system
DOC – diesel oxidation catalyst
DPF – diesel particulate filter
EGR – exhaust gas recirculation
FTF – flow-through filter
LNC – lean NOx catalyst
SCR – selective catalytic reduction