Back in the early 70s, I bought this neat WANTZ bottle for demineralizing water for my steam iron. I have replaced the resin once, but now I can't find the stuff anymore and the company seems to be gone. I have found, on a couple of sites including the one at the link, something that might be the same, although it is probably enough to last for several lifetimes. Does anyone know if it is the same stuff as in the WANTZ bottle? I guess that on a smaller scale, my iron qualifies as a gravity feed. The resin says it changes color just like the WANTZ stuff. I love the little spout that injects the water into the iron and the name because if you put an sh in front of it, well I won't get into that here. I guess I could buy a lot of distilled water for $12.75 + shipping. Might a sewing goods store sell this? Your information will be greatly appreciated. Thank you in advance.