I really like this 1HP portable DC that I got. It's very light and just right for those machines that aren't piped to my main DC. The bag is not really great, so I'd like to get a decent felt bag for it for better air flow and filtration. Anyone know of a direct replacement for it? Griz offers a 3 micron bag, but I don't think it's felt. I do want to stay with the same size bag for it's space saving advantage.