Refractometer
Designed to accurately test for residual water content

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Pre-calibrated for accuracy.
This Evans Cooling Refractometer is designed to accurately test for residual water content. By determining the water content you'll be able to safely set up your cooling system with Evans Cooling products.
- Fast, simple optical method
- Requires only 1 drop of coolant
- Compare optical reading to water content chart
Download Complete Refractometer Instructions - Part #E2196 pdf