Astro Pneumatic Universal Air Powered Cooling System Pressure Tester – 7856

• Pressure regulates shop air to test any cooling system or radiator cap for leaks
• Quick connector works on nearly all brands of cooling system testing caps and adapters
• Fills even large cooling system almost instantly, and provides constant pressure on leaks to trace their source
• Gauge displays the common pressures levels for different cooling systems and regulator will max at 30psi to prevent damage