Yes, Goohsmom, a Cambro is cheaper, the 19 quart model is $20.91 U.S. right now, not a bad price for it:
Looking back over the past 6+ years, above.
A hole saw from 2-3/8" to 2-3/4" (6cm to 7cm will make many a container lid fit most circulators, too, I think. Plenty of people make 'Frankencoolers" - and since they’re insulated they can be bigger than what a given circulator is recommended for.