Sounds spendy to me. I have a total of $35 in both of these, if you don't count the filters. The Craftsman has paper filters, if I can find some. If not, I probably could just cut up any old vacuum filter with that type paper.
Steve
Do you even need filters? If so, a separator before the vac seems the way to go. Removing the filter will allow any dirt to pass through (not clog the filter) and it will remove some restriction. You really don't need the shop vac's can, either. Something like a dust collector may get higher air volume. Something like:
HomeOwnersHub website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.