... be easily changedFrame structure,easy to maintain and repair Sealed hot & cold water tanksAdjust water quantity and temperature freely Filter replacement alarmOptional ... ),GR320RBMini water coolerGR320MC,GR320MC-BWall amounted POU water boilerGA406A,GA406ZStanding hot & cold water dispenserGR320A(RO),GR320B,GR320PS(bottle), GR320PS(bottless)GR320W-A ...