Preston frost protection tester Spindel cooler frost protection coolant tester Prestone frost protection inspector spindle cooler frost protection EAN: 5907629226031 Manufacturer number: AF 1420 Brand: Prestone . Technical information Professional test device to determine the frost protection temperature. The construction of the intake system prevents bladder formation and return of the test leader. The measurement is independent of cooling water temperature and athylene glycol concentration.
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