Features of the 5/4 " clic-clac basin drain with overflow (A392B): Thread for connection to washbasin trap 5/4 “. Surface is resistant to mechanical damage Long-lasting CLIC / CLAC mechanism Material: chrome plated brass White plug With overflow 100% European production Alcaplast was founded in 1998 in the Czech Republic. It currently has seven foreign subsidiaries and exports to over 40 countries worldwide. Alcaplast is the largest manufacturer of sanitary ware in Central and Eastern Europe and produces a wide range of over 580 items - valves, siphons, modules, grates, drains, toilet seats and other products. Quality and design are the 2 main pillars of the company.