DrNickGood question! However, I do not know. Sorry! The width of the spindle on the single bill Cash-Can is slightly longer than 1 inch. A bill that is 3 inches wide, if folded carefully into thirds, will fit. The US bills are 2 5/8 inches wide and do not need to be folded exactly into thirds. The 2 bill Cash-Can will accept a bill that is slightly wider than 2 3/4 inches. Even though I don't know the answer, I do know that we have customers in Canada that buy these. Thanks for the question!
BTW.. a customer sent me this Mini Cash-Can Bill Folding Video:
atdcI checked in with one of my Canadian customers and here is what I found out so far. The polymer bills do not fold as easily however they take up less space! Since Generic_User was able to easily get a bill into the Mini II Cash-Can, 2 bills or even 3 might fit! I'll update if I get more info..
Update: Regular and polymer bills fit into the single bill Cash-Can. The polymer bills are slippery, which does add a slight challenge..