Integrated into the FPT Series gas cap testing system, this purple gas cap adapter enables the detection of pressure loss within vehicle evaporative emission systems. This American-made component creates a secure interface at the fuel filler neck for leak testing. It also includes a limited lifetime warranty.

Integrated into the FPT Series gas cap testing system, this purple gas cap adapter enables the detection of pressure loss within vehicle evaporative emission systems. This American-made component creates a secure interface at the fuel filler neck for leak testing. It also includes a limited lifetime warranty.