The McAlpine S31U Straight Connector - BSP Male x Universal Connection is a plumbing component used in waste and drainage systems. This particular model of connector is designed to connect a male BSP (British Standard Pipe) thread to a universal connection, which can be used to connect to a variety of plumbing components or fixtures. The connector is made of durable materials such as polypropylene and is designed to be resistant to chemicals and UV light. The McAlpine S31U Straight Connector is made by McAlpine, a leading manufacturer of plumbing products in the UK. It is suitable for use with a variety of waste pipes, and can be used in both domestic and commercial plumbing applications. Installation of the McAlpine S31U Straight Connector should be done by a qualified plumber, following local codes and regulations. It is important to ensure that the connector is installed correctly to prevent leaks and other issues in the waste and drainage system. ・ Available in 1¼" and, 1½" sizes ・ For use with MACVALVE-1 and MACVALVE-2