No.4107 – Propylene Glycol Anti-Freeze Tester

Engineered for precision and durability, this professional-grade tester is specifically designed for automotive cooling systems that use propylene glycol-based antifreeze. Built with a super tough plastic body, the tester delivers accurate, temperature-compensated readings to help ensure proper freeze protection and coolant performance.

Featuring five calibrated floating discs, this tester offers clear, easy-to-read results across a wide temperature range. Each disc corresponds to a specific freeze point, allowing users to instantly determine the level of protection their coolant provides.

• Disc Readings:

  • All discs floating = +20°F (–7°C)

  • 4 discs floating = +10°F (–12°C)

  • 3 discs floating = –5°F (–21°C)

  • 2 discs floating = –26°F (–32°C)

  • 1 disc floating = –50°F (–46°C)

Features:

• Designed for propylene glycol-based coolant systems

• Accurate and easy-to-use, even in extreme temperatures

• Temperature-compensated floating discs for reliable readings

• Durable see-through plastic body for long-term use

Ideal for automotive technicians and DIY users who require fast, dependable antifreeze protection testing.