Checks for combustion leaks caused by bad head gaskets, cracked blocks, and cracked or warped heads
Fluid changes from blue to yellow when exposed to combustion gases from the radiator
With the engine running, the vehicle vacuum or the vacuum pump draws vapors through the indicating fluid for testing

Technical Details

Size (LWH): 12.2 inches, 8.82 inches, 2.05 inches
Product Details
Product Dimensions: 12.2 x 8.82 x 2.05 inches
Shipping Weight: 1.85 pounds (View shipping rates and policies)
ASIN : B0007ZDRUI