Originally Posted by mitchgo
Mpr's do run longer then rotors because they use less water..
Sorry, I know it's argumentative, but really this isn't altogether true. MP's use less water because they don't have as large of a radial pattern as a true standard rotor in most cases.
Every mp has a higher precip rate than RB standard nozzles until you get to the 4.0, based on 45 psi.