Is this for real? The Bath Ball tap filter has got to be the easiest, least hideous looking filter we've seen for the bath. Though we definitely prefer filtered drinking water, here in Seattle unfiltered water doesn't taste too bad. The number done on skin is another matter altogether.
The ball hangs from the tap by a vinyl strap, and as water runs through it, 95% of the chlorine is filtered out. It's $89 here, and replacement KDF filters are $49. So the cost leaves something to be desired, but we like how it doesn't require screwing-on.