1.Use less space:The concealed cistern can be installed in a wall of 130 mm width.It can suit for dry-wall installation or pre-wall installation and don't influence the structure of original wall. 2.Aesthetic-installation:Concealed cisgtern's greatest feature is that the flush system will never be seen.It is thin enough to be hidden in a wall of 130 mm width. 3.Corrosion-resistant and durable:The cistern body adoptted HDPE plastic. 4.The cistern body is sticked with foam,it can debase noise. 5.The cistern panel adoptted ABS engineering plastic,it's corrosion resistant & durable.Four colours can be choosed:white; beige; bright chrome & satin chrome. 6.The paintted steel frame is corrosion-resistant,durable and can bear the heavy stress of about 400kg. 7.Save water:3L & 6L flush water volume can be choosed optionally. 8.With silent fill valve&flush valve,can prevent noise. 9.Every cistern is automatically tested for correct function and to ensure that have no any leak.The using of first-class material can certify that the valves' useing life is long. 10.Easy,fast installation,cleanout & maintain,suit for the drastic competitive international market.