TOTO concealed flush tanks / in-wall cistern frames (model WH143B-542B, 3.0 L half / 4.5 L full flush) that are used for wall-hung or back-to-wall toilets with a flush plate — no bowl or seat included. Manual Concealed Cistern (Flush Tank) Model: WH143B-542B Flush volume: 3.0 L / 4.5 L (dual flush) 5 available in total
