I am also actively trying to find a replacement toilet seat for this. Mine says Incepa instead of Laufen but in looking at posts around here looks like same company. That picture IS my toilet which I love! But toilet seat never looks "clean" underneath- streaked/stained from cleaning products. Saw a post from UK by someone making wood replacement seat for this model but I'm in the USA. My toilet itself in wonderful condition so hate to replace it for lack of being able to find replacement seat. OR does anyone have any tricks up their sleeves for getting stains out of existing one? Any help would be greatly appreciated!