Purity is crucial and proper parameters such as flow rate, micron size and compatibility will be critical to your success.  Semler Industries has an extensive line of filtration products, including filter elements and filter housings, to fit any DEF application.  As experts in the industry we can help select the appropriate combination for your particular situation.  Check  out this video showing how DEF crystallizes.


Semler Industries is proud to partner with Graver Technologies, Strainrite and Shelco to supply our customers with the very best filter elements and filter housings.