COOLANT SYSTEM FLUSH GUN Description:• Designed for cooling system flushing• Step adaptor connects to hoses in different diameters• Use air and water to cleaning up system• Trigger handle to control flushing and simulate pulsing force Characteristics: 5 Adaptor Size: 019, 029, 032, 036.5, 040mm Operation pressure: 90psi Noise: 85dB