This Actron compression tester kit from detects worn rings, burnt valves and blown head gaskets. A push-button side release valve is included which allows repeated compression testing without disconnecting.

Product Features:

• Quick-release hose disconnects from gauge for faster, easier use
• Uses Standard and metric scales: 0-300 lbs psi and 0-2100 KPa
• 17 inch high-pressure flexible oil-and grease-resistance hose
• 14mm and 18mm ends fit most spark plug openings