Take the
CRB out of the equation for a sec. any rotary extraction tool...360i,
rx20 or whatever will always out clean just the standard wand alone. Now, any agitation you add prior to using standard wand makes a big difference (for the better of course), weather it be a
CRB or 175 with carpet brush. Now the question becomes what provides better agitation,
CRB or 175 w/carpet brush. I've always used a 175 with carpet brush with always excellent results. Just recently got a
CRB and have only used it a few times now and love it for it's ease of use and a lot easier to carry in and out of jobs and it's absolutely great pile lifting ability. Does it provide better agitation then the 175 w/carpet brush. Well i'm still up in the air on that, need to use more to say for sure. But so far so good and i am impressed with it and glad i have it.