Compressed Air Adaptor

• Use with the Model No's VS160 or VS168 to hold the valves closed whilst spring is compressed.
• Spark plug adaptor with M14 and M18 threaded fittings for car and light commercial use.
• Valve assembly maintains cylinder pressure when air supply is cut.
• Requires a 90-125psi supply.
• Requires standard bayonet air line coupling (not included).