I had been frustrated using the screw on tip of the compressor hose. I could not seem to get it unscrewed without letting more air out of the tire. Knowing that I was not the only one likely to have this experience, I discovered the adaptor hose to remedy this situation. What absolutely amazed me was that the part was ordered one day and the VERY next day the part arrived. Even in the midst of delayed deliveries due to Covid-19.