Polypipe manufacture a wide and comprehensive range of waste traps, including anti-syphon units and universal flexible wastes, to fit applications from bathrooms to wetrooms and kitchen sinks to washing machines. Trap Straight Hose Pipe Connector 1" BSP Threaded Nut White - manufactured by Polypipe Building Products as part of the Traps Systems range - Adaptors Features & Benefits: Polypipe manufacture a wide and comprehensive range of waste traps, including anti-syphon units and universal flexible wastes, to fit applications from bathrooms to wetrooms and kitchen sinks to washing machines.