Good info there, Dan, but last time I checked the non-original ones listed there are also no longer available. I rebuilt my original canister following the CJ5 thread linked above. I used a cutoff wheel to open up the canister, and then 2-part epoxy to close it up again. For the top filter I might have used a Scotch-brite pad (easy to cut with scissors), and for the bottom filter I used some HVAC filter material from Home Depot.
