Examining the item in your inventory gives you the option to "Fill the bath" which results in a Paineel bath.
The No-Trade flag on this and many others item from Red Shinies collections now have no flag and can be sold on the broker or placed in the shared bank.
Many house items with the previous flag (No-Trade), Lore, and even Heirloom have seen many rounds of updates starting in 2013. For the most up to date flags, see the decor website that uses data (directly from SOE) to stay up to date.
EQ2i credits this article at Census for the info in this article. the last update on Census for this item was: Tue, 18 Jul 2017 14:53:25 +0000