They are good when you are removing your hose. You don't get a large blast of liquid freon on your hands from the liquid line.
Also you don't get oily fumes from the suction line and oil blowing out on the unit and making a mess. A lot cleaner and neater to use they are.
Also you don't get oily fumes from the suction line and oil blowing out on the unit and making a mess. A lot cleaner and neater to use they are.
