1.7K views · 26 reactions |  Precision Measurement with OTC Tools!  The OTC 5025 DEF Refractometer is the essential tool for accurately measuring the concentration of diesel exhaust fluid (DEF).  Check out our product video to see how this reliable refractometer can help you ensure optimal performance and compliance in your diesel engines. Learn More: https://bit.ly/3HINwLX | OTC Tools | Facebook
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1.7K views · 26 reactions |  Precision Measurement with OTC …
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