Vitreous china 3 or 6 liters double flush P-trap,S-trap,300,400 or 560MM roughing-in outlet,o.d 80mm The inside pipelin Vitreous china3 or 6 liters double flushP-trap,S-trap,300,400 or 560MM roughing-in outlet,o.d 80mmThe inside pipeline constructs glazesGraceful surface and special style concealed toilet