[Peter M. Eick]

I have a big stullersonic unit that takes a couple of gallons of Mpro7 to fill. It cleans extremely well. The heater brings the temp up quickly and just running it 15 minutes gets the fluid nearly too hot to touch.

Guns come out surgically clean. Hard to describe it otherwise but things you though you cleaned well before, are much more clean now. Little things like the lettering on the barrels are completely clean to the bottom of the letters. No amount of scrubbing with a toothbrush would compare.

Mine was about $500 used, and refurbished. I can't comment on the cheaper ones, but I would replace mine immediately if it broke. I don't use it often, but when you want something clean it is the one I go to.