Finned filters clog, and are one of the nastiest, hardest things there is to clean. I have 3 Ridgid w/d vacs and I buy Genie paper bags and put over the filters on all of them. Since I have done this I have not replaced a filter in any of them. Cleaning is a simple blast of compressed air. The bags are $2 for 3. ALLOT cheaper than the $15 cheapest filters for the Ridgid's. They also help filter out the finer dust so it doesnt work it's way through the filter and back into the breathing air.
John E. Adams<br /><a href=\"http://www.woodys-workshop.com\" target=\"_blank\">www.woodys-workshop.com</a>