I bought a 064 basket case and completely rebuilt this saw. It didn't come with a filter, and I've been looking on ebay and other sites but can't find the right one. The filter base is # 1122 124 3400 so I think it takes a 1122 120 1605 filter. I made the mistake of buying a **** ** 1615 filter which does not work. I know I could, and it would be better to do a conversion and put a newer filter type on this saw but can't afford it right now. So, if anybody has one of these 1605 filters laying around, I would like to buy it. Thanks