The numbers normally stand for pressure. I personally set this method up in about 2003 or so and everyone else kind of followed suit. So the EX5 is 5 psi, EX-10 is 10 psi and so on. With our MEGA machines the number refers to the flow. All of our MEGA machines are 20 psi but the flow rate is indicated by the number starting at 20 and going up to 40.
|