[Zultraranger]

What is the difference between the single solenoid from Festo compared to the one from SMC?
Does it matter which one we use? i.e. do certain solenoids go to certain pistons?

Also,
When going from the tubes to the pistons, can you use a thread to tube connector instead of an adjustable thread to tube connector?
(we don't need to regulate the amount of air going into the piston)

Thanks in advance.