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2022 Antifreeze And Coolant Tester Hydrometer Dial Type Rapid-test Rapid- test Anti-freeze Densitometer Coolant Tester Accessory - Diagnostic Tools - AliExpress
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Sardfxul Coolant Tester Accessory Automotive Antifreeze- Tester Coolant Hydrometer Tester Easy to Use for Household Workshop - Walmart.com
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Deluxe Antifreeze & Coolant Tester Hydrometer Tester Automotive Antifreeze Test Dropship - Concentration Meters - AliExpress
![Not sure what to make of this, this is a coolant tester. Since were in summer is this a good result? What is the yellow ball doing? : r/MechanicAdvice Not sure what to make of this, this is a coolant tester. Since were in summer is this a good result? What is the yellow ball doing? : r/MechanicAdvice](https://preview.redd.it/2y7wzo9e84631.jpg?auto=webp&s=73efe0d225ab29afef47b28513c791dc759f502c)
Not sure what to make of this, this is a coolant tester. Since were in summer is this a good result? What is the yellow ball doing? : r/MechanicAdvice
![Deluxe Antifreeze & Coolant Tester Hydrometer Tester Automotive Antifreeze Tester Compatible With Vehicle Car - Concentration Meters - AliExpress Deluxe Antifreeze & Coolant Tester Hydrometer Tester Automotive Antifreeze Tester Compatible With Vehicle Car - Concentration Meters - AliExpress](https://ae04.alicdn.com/kf/Hd1f21130ecaf4229a31490582138547a6.jpg)
Deluxe Antifreeze & Coolant Tester Hydrometer Tester Automotive Antifreeze Tester Compatible With Vehicle Car - Concentration Meters - AliExpress
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Amazon.com: ABN Deluxe Antifreeze and Coolant Tester Hydrometer Tester – Automotive Antifreeze Tester for Ethylene Glycol Coolant : Automotive
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