What is the difference between pneumatic components PC8-03 and PC8-02?
Do you mean the connection? If it's the joint, 02 refers to PT1/4, and the 03 refers to the PT3/8, the joint is one side of the pipe and the thread, and the two are inserted into the 8 pipe
3 point teeth, PC8-02 refers to the 8MM trachea, 2 points of the teeth, the difference is that the two screw teeth.
PC8-03 PC8-02 is the most common pneumatic component, which is commonly known as an upright joint. PC8-03 refers to the trachea of 8MM