I have the cable cuffs on all of our surface cleaners and I color code them, yellow cuffs are for 8 gpm surface cleaners and blue are for 5.5 gpm
I dont use orange anymore, I was asked if I was an Auburn fan when I had them in orange and blue! LOL - So I went and got yellow!
I dont use them on wands, all of our wands are open wands with no trigger, also they last forever without moving parts, I just turn them on and off with a ball valve plus it eleminates alot of operator fatigue not having to squeeze the trigger all night.