... stainless steel inner tank 3. High density import polyurethane. Separated Storage Water Tank---Pressurized TankCE,SRCC,ISO ... Electric control boxModel No.Water CapacityInner tank (SUS304)Outer tank ( Painted steel)InsulationSingle Copper coilDouble ... 100021001001515+15Above offer include the Water tank, Components. Copper coil as your need. Water storage tank, solar water tank, pressurized tank.