Robinair 75234 Econo-Clean 3-Way Heavy-Duty Truck Coolant Test Strip Econo-Clean 3-Way Heavy-Duty Truck Coolant Test Strips Test strips provide information used to ensure coolant will provide adequate protection for heavy-duty vehicles Analysis of coolant allows it to be adjusted to the manufacturers specifications, ensuring peak protection under all road and environmental conditions Simply dip in coolant and strip shows pH, freeze point, and nitrite levels (04000 ppm), pH &lt;7.511+, glycol 0-60% Convenient color coded chart on bottle label allows you to quickly determine test results Robinair 75234 Econo-Clean3-Way Heavy-Duty Truck Coolant Test Strips Robinair Econo-Clean3-Way Heavy-Duty Truck Coolant Test Strips ensure that coolant will provide adequate protection to the vehicle. The coolant should be adjusted to the manufacturer's specifications. These accessories will help you quickly test coolant. Just dip a strip in coolant and it shows the freeze point and the pH. 3-way heavy-duty truck coolant test strips shows pH, freeze point, and nitrite (04000 ppm), pH &lt;7.511+, glycol 0-60 percent. To ensure coolant will provide adequate protection to the vehicle Coolant should be adjusted to the manufacturer's specifications Quickly test coolant