I’ve not seen one of these in Taiwan. They may exist but, not that I know of. I understand what you want as I had one in my home in Mexico. I looked around for something similar when I first arrived and couldn’t find it. I did find a plastic jug, about 5 gallons, with a single spigot at the bottom on the narrow side. I had a commercial filtered water dispenser near my home. I would take the jug down and get about 4 gallons for 30NT about once a week. Most water dealers have one near their store but, I guess in a pinch, you could just buy the big, about a gallon, bottle at the market and pour it in. It would be more expensive but workable. Actually, I still have the jug but don’t use it any more because I have a filtering system under my sink. I think I found the jug at a 100NT store but have seen them in other stores. If you want my old one, it’s yours for coming to get it but it was only about 200 NT. Tuchen, Taipei County.