The "Piato" is built on the platform from the Folding Ceramic family, we have added the square spout from the Geometric family. Suitable for most modern interiors of today's boats A ceramic valve cartridge, for drip free service. Solid brass with chrome finish body, chrome ABS knob, Water Connection: 3/8" BSP-M threaded shaft, 1/2" NPS-M adapter included. Mounting Hole: 5/8"