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Specifications

The FJC 43648 Antifreeze/Coolant Hydrometer is a reliable diagnostic tool for checking coolant protection levels. It accurately measures the specific gravity of coolant mixtures, helping determine freeze and boiling points. Simply draw coolant into the hydrometer, read the floating scale, and see if adjustments are needed. Maintaining the right coolant mix protects engines from overheating and freezing. Built for workshop use, it’s durable, precise, and ideal for preventive maintenance, fleet inspections, and service professionals.
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