now don't pay any attention to the dust thats one detail that can be removed. but just to show what a difference a small thing makes in the display of the car. when I set this O2 bottle in I could not find my old regulator so I just put on a new one. . you look in the car and you expect to see the regulator but you also notice it not right. having the right one makes all the difference. now if I only had a the round knoby wheel with the chain on to turn on the valve. the plastic wrench is just wrong