G7-3 Simple Cylinder Pressure Gauge Engine Compression Ttest Set 0-300psi/0-20 bar

1. Quickly and accurately check compression on petrol engines.

2. Works with domestic and imported engines.

3. Spark plug adapters have O-ring for improved sealing.

4. 6'' heavy-duty stem with universal rubber cone adapter fits all spark plug hole.

5. 13'' durable rubber hose.

6. Thread size: M10*1.0,  M12*1.25,  M14*1.25,  M18* 1.5.

7. Gauge reads 0-300 psi.