... stainless steel structure, durable and easy to clean.6. Integrating water flow indicator, TDS indicator, pressure indicator, control panel7. China ... Tengen Or optional SIEMENS / MISTSUBISHI / ABB / PanasonicOthersBuilt-in flow meter, TDS meter, pressure meter, Solenoid valve, etc.OPTIONALChemical ... device or mixed bed for electronic / medical industries. Ro water treatment equipment/water filter