I have one of these for sale. It is brand new. It is due to arrive with me next week direct from Waterdrop UK. I will not open the box. It will appeal to anyone who wants to dispense varying temperatures of warm/hot RO water. It does not dispense cold water. You can read about it here:
https://tinyl.co/4NLu
I do not know what the warranty situation is with it, so presume that there is none on it. They are £350. I want £250 please
