I can't say with certainty, but since round bowl in the size you need is pretty much a low cost basic item, I suspect Sanagloss is not an option. Quite often when streaking is a problem, we suggest examining your diet. Too much rich food can attribute to this problem. I have 2 Totos and seldom have this problem. That doesn't make me some kind of diet guru, but I think the fact I rarely eat the foods that would cause sticking feces, there is a relationship. We do keep a brush handy for the occasions when it is needed. You can peruse the Toto specs in the the Toilet Review linked at the top of this page.