Austin: If you can-try using the Eureka Type "F&G" bags in it-they can be folded to fit-but the C bag feed tube will fit the F&G bag tube-and convert the machine to a top fill.That can give you better efficiency.Royal "A" bags are another one you could try.I use the F&G bags in my Hoover 31 and they are great-much better than the C bag-and can be easier to change when full-less or no dirt falling out of the bag opening when you remove it from the cloth bag fill tube.I have a pack of "C" bags that I got with the 31 and just keep them on file-in my bag collection.Royal A bags and Eureka F&G bags are interchangable.I almost would like to try to put a plastic feed tube in the 115 I have in its present cloth bag and use the paper ones in it.Would be an interesting experiment-just need to find a peice of plastic tubing to fit in the 115 bag and put the paper one in the colth bag over the tube.You just can't let the paper bag get too full or you can't get it out of the cloth bag.Do the newer Jr bags such as you are using fit the 115's?For use may be interesting to try one of those newer bags on it to use-that way you can use the paper bags.