This 3-way diverter valve meets European standard, suitable for Europe, can be used on toilet bidet The diverter changes the direction of water flow, the water can not only flow in one direction but also in two directions at the same time The bidet sprayer can be locked and will not be opened accidentally, making it ideal for families with children. The connection size of this toilet diverter is 15.5mm (3/8") female outlet, 16.6mm / (3/8") male inlet and 20mm (1/2") male outlet The diverter is made of high quality brass and chrome, which makes it very durable