Disc-Type (PG) Anti-Freeze Tester 
Professional disc-type 16 1/4" tester is used to test propylene glycol-based antifreeze in automotive radiators. Number of floating discs measures level of protection. Temperature compensating tester is accurate whether coolant is hot or cold. Readings in Celsius and Fahrenheit.
Shipping Weight 0.35 lb
Availability: In stock.