Antifreeze Tester - Propylene Glycol

Easy to read hydrometer, designed for Propylene Glycol antifreeze.

• Number of floating discs indicates the level of coolant protection.
• Tests at hot and cold temperatures; reads in celsius and fahrenheit.
• Bulb is green with 5 coloured discs.
• For the Ethylene Glycol antifreeze Tester, please see Laser Part No. 4293.