
| Part # RT750A - Virgin Acid Tube |
The Acid and Moisture level of refrigerant gas are measured independently.
Knowing the purity of Refrigerant is vital information for every service technician. The technician needs to know if the refrigerant can be:
- immediately reused,
- needs to be cleaned-up,
- contaminated beyond reclaiming capabilities,
- or failed to be properly cleaned during a reclaiming process.

| Part # RT750A - Acid Detector Tubes |
This is a positive test for Acidic Refrigerant. Color change is Blue to Yellow, or Blue to White, often a mixture of both yellow/white. |

| Part # RT751M - Virgin Moisture Tube |

| Part # RT751M - Moisture Detector Tube |
For Moisture, the initial Light Brown indicating layer, stains to a Grape or Blueberry.
The Detector Tubes results for Refrigerant testing are displayed in parts per million (ppm)
In System Diagnostics, the tests result obtained by the Oil Detector Tube can be
correlated to the findings of the Refrigerant examination, or visa versa
"Give us the tools and we will finish the job"
...Sir Winston Churchill (1874-1965)
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