Graco Inc.

Blue DEF Couplers  Maintain Desel Exhaust Fluid (DEF) Purity

Choose the industry accepted closed inlet system that best meets your application needs

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Maintaining fluid purity is essential to the longevity of your equipment and maintaining Selective Catalytic Reduction (SCR) engines. With a closed system design you can minimize fluid contamination, prevent spills, and minimize fumes. Couplers are ideal for safe and efficient delivery of DEF from bulk containers.

Micro Matic

  • Reusable Stainless Valve (RSV) is ideal for multi-use applications. The system is designed to be used with a pump to transfer product and is simple to integrate with drums, totes, and custom packages.
  • Economic Plastic Valve (EPV) is designed for one way, single use applications. Engineered for use when operations require the container package to be used once, emptied and recycled.


  • DrumQuick® PRO Quick Connect Coupler System. Economical polypropylene assembly can withstand thousands of quick and fast connections.