Plumbing Hercules Hvac/Heating Products | Refractometer

Using Anti-Freeze Within The Recommended Levels Of Concentration Ensures Efficiency Of Heat Transfer. Traditional Test Strips Can Be Difficult To Read And Are Not Always Accurate. A Hand-Held Refractometer Is The Fastest And Easiest Method For Ensuring Accurate Ethylene And Propylene Glycol As Well As Battery Acid Concentrations.