URG's complete collection of stainless steel cyclone inlets are designed to meet USEPA's specifications for CPR Part 86 Subpart N Revisions for the certification of heavy-duty diesel engines.  The cyclones provide 99% flow-through of particles 1 micron and smaller and are designed for a flow range of 5 to 92Lpm.  Below is a selection of the stainless steel cyclones that URG offers.