Powerhouse Products dual gauge leakdown testers are the trusted choice of racers for checking problems with piston rings, head gaskets, valves, and more. These testers are made with two gauges--the left gauge shows incoming air pressure, and the right gauge gets plugged into the cylinder and shows how much air the cylinder is holding. The difference between the two gauges is your leakdown. Powerhouse Products dual gauge leakdown testers include a universal 14mm spark plug adapter, rubber gauge protectors, a high-quality regulator, and complete instructions for use.

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