From what I have read, the filters worked best with the old Scottissue single ply 1000 count toilet paper. It used to be sold in single rolls and was advertised as septic tank friendly. It is still sold, but in multipacks and the rolls are 4" wide instead of 4.5" wide.

The filters supposedly work best with single ply instead of double ply because of the layers of filtration. And adding quilting might be better on you bottom, but is detrimental to filtering.

The cheap, single ply rolls found in public restrooms are supposed to work very good in the filters, but I had trouble finding any without having to buy it by the jumbo case from a restaurant supply company.

I bought some 1000 count single ply in a 4 pack at Walmart over the weekend for about $2.50. It is about 4.25" wide. It fit into the canister very well...nice and tight, packed it in with the bottom of a one pound coffee can, core stayed round and did not lose its shape, exactly how I wanted it...super snug.

OK, enough about my toilet paper research!

Ed Greany now owns the Frantz company that was started by John Frantz. His website is--

www.toiletpaperoilfilter.com

Ed sells a newer version called "The Refiner", but he also carries the parts for the vintage one like I have. Great guy to work with. He sells the gaskets for the old ones. Not listed on his website, but he also has the decals for the old ones. The one in my picture has one of his replacement decals on it.

Matt