- Use to test for clogged or obstructed catalytic converters and mufflers
- Fast and easy to use - threads into Oxygen Sensor Port
- Includes 12mm and 18mm adapters to fit most domestic and imported vehicles
- Gauge measures 2-1/2" diameter and has dual scale: 15 psi and 1.00 Kg/Cm2
- Hose is 41" long
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