Elegant design: German design and engineering delivers consistent performance for all your bath needs Sink to wall mount design: The Flowstar Bottle Trap installs to sink and the wall to create a secure connection Space saving: The straight waste pipe flows into a cup shaped vessel where the water is collectioned, preventing odors from being released. Classic style: Timeless brushed nickel fits particularly well for transitional architecture Box contents: escutcheon Diameter 2.83 in, immersion tube 5.5 in, wall pipe Premium materials are installed in all components - for more safety and sustainability in the home hansgrohe Since 1901 - the premium brand for reliable bathroom and kitchen products Installation notes: Hansgrohe recommends a licensed plumber install this product