one-piece toilet H3001 siphonic s-trap, 305mm rough in 4,8L single flush PP slow down seat one-piece toilet H3001siphonic s-trap,305mm rough in 4,8L single flush,0,05MPa (Dynamic pressure)-0,75MPa(Static pressure)PP slow down seat,660×360×730mm ceramic HET one piece toilet H3001 siphonic