Rick,
I pulled all the rusted guts out of mine. I got ahold of some filter material used on paint booths. It is about an inch thick, heavy weave material, but not too dense. I cut out doughnut shaped pieces that fit up into the filter housing. I have 5 of those stacked on top of each other.
Works great in conjuction with the oil bath.
I cut the inside out and put a dry element in it . It worked great.
i put the stuff in to clean pans with a sort of scotch brite