Copper Check is a diagnostic test strip used to determine when to change a vehicle’s brake fluid. This test strip helps technicians quickly find and replace corrosive brake fluid.
Copper Check puts a stop to guessing if the fluid should be changed by providing an industry standard copper corrosion test strip that reveals the age and condition of DOT 3, 4 and 5.1 brake fluid — in less than 60 seconds.
For more info: brakebleeder.com