Activity Value Test System (AVTS)

Activity Value Test System (AVTS)Over 1,000 catalytic elements have been tested over the last three years with the Activity Value Test System (AVTS).

The Activity Index (AI) provides the element owner the ability to know that the element will work before putting it back on the engine.

With AVTS, you no longer have to wonder if your element will pass the state’s EPA test. You will know!


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