1. Powerful flush cleans Impurities in cooling system
    with a pulsating effect
2. Adjustable trigger to provide pulsate flush and regular
    consistent-pressure flush functions
3. Includes a conical adapter for fitting radiator filler necks
    5/8" and 3/4" heater hose barbs and a small conical
    adapter for flushing heater side
4. Connects to air compressor and garden hose for flushing the
    cooling system
5. Special back pressure one-way valve to avoid excessive
    pressure accumulated in water hose