the ones from rbi i believe are cheaper because they come without the tubs. they come out to be more then the boaphile when you add the tubs(i may be wrong). i would go with the boaphile if your gonna get a rack.
this is the one i picked up
http://www.boaphileplastics.com/rhin...sterilite.html
this is the list of what they have
http://www.boaphileplastics.com/rhinoraxx_choices.html
they have racks with both sterilite and rubbermaid. and jeff is an awesome guy to deal with when it comes to customer service. he accidently sent me the 5 rack instead of the 6 and had it picked up the next day sent me the other in a few days. no bull from him!