Missyee 14 PC Radiator Pump Pressure Leak Tester Checker Kit Aluminum Adapter w/Case PERFECT FOR DETECTING LEAKS. Tester helps detect internal and external leaks, perfect for head gasket failure detection (which side of block or which cylinder leaks) THUMB-OPERATED RELIEF VALVE. Thumb-operated relief valve for quick and easy pressure release and self-locking quick-disconnecting components. USEFUL. Useful for testing automotive pressurized cooling systems up to 35 PSI. HIGH VOLUME PUMP CAPACITY. High volume pump capacity reduces strokes required to pressurize cooling systems. Self-locking quick-disconnect adapters, 35 PSI gauge with pressure release valve. QUALITY MADE PRESSURE LEAK TESTER WITH A 100% MONEY BACK GUARANTEE - LOVE them or your money back, no questions asked, just a prompt, courteous refund! We're a company by and for Pressure Leak Tester and we're here 7 days a week to deliver you UNSURPASSED SERVICE, answer any Pressure Leak Tester or how to use questions and ultimately help you get your Pressure Leak Tester what you love! PLUS SEE OUR PROMOS BELOW FOR MORE DETAIL! ORDER TODAY.