Cold-Chek Propylene Glycol Anti-Freeze and Coolant Tester

Thexton Cold-Chek Propylene Glycol Anti-Freeze and Coolant Tester






For testing propylene glycol-based antifreeze in automotive radiators and freshwater system in RV's and boats. Accurate to -50 degrees F. Ball float to show freeze protection. Tests coolant hot or cold. Pocket protector