Copper sinks from France. German cast-iron bathtubs. Hand-painted bathroom tiles. Classic ceramic bidets and water closets. (The staff prefers this term to toilets.) All the plumbing fixtures in this store are designed in England or France with simplicity and elegance. No gold-leaf, dragon-head faucets. No toilet-seat replicas of a Medici throne. This is a place for people who don't need to show off and are willing to pay to prove it. That French copper sink? $5000. Those German tubs? $1500 to $2500. Wastewater was never treated so well.