Ralph likes Kimberly Clark, but says Scott 1000 is also good. What are the rest of you using in your TP filters? Years ago when I worked at a retail business, I picked up a case of commercial grade (meaning not available in stores) TP for the business. It was very densely wound. Not much for soft on the rear end, but you could get a whole lot of wipes out of one roll. I wonder if that type would be good for the TP filters. Thoughts?