Thermal Fluids Optical Refractometer

The Thermal Fluids glycol heat transfer fluid refractometer is an easy to use and valuable tool for professional service technicians. This Refractometer was specifically designed by Thermal Fluids for use in the hydronic heat transfer industry. It quickly and accurately measures the freeze point of both propylene glycol and ethylene glycol based heat transfer fluids. With reasonable care it will last indefinitely.

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