The McAlpine BOSSCONN1.25BL is a mechanical soil and rainwater pipe boss connector that is designed to connect a 1¼" waste pipe into a vertical soil stack or a horizontal drain pipe. The connector is black in color and features a two-piece design that makes it easy to install. The McAlpine BOSSCONN1.25BL is a high-quality product that is designed to provide a reliable connection between the waste pipe and the soil stack or drain pipe. The connector features a rubber seal that provides a watertight and airtight seal between the waste pipe and the soil stack or drain pipe, preventing any leaks or odors from escaping. This type of connector is commonly used in plumbing installations, particularly in situations where it is not practical to connect the waste pipe directly into the soil stack or drain pipe. The McAlpine BOSSCONN1.25BL is a durable and long-lasting product that is made from high-quality materials and is designed to withstand the rigors of daily use. If you need to connect a 1¼" waste pipe to a soil stack or drain pipe, the McAlpine BOSSCONN1.25BL is an excellent choice that will provide a secure and reliable connection for many years to come. ・ Available in Black or Grey ・ For 1¼" pipe ・ Allows condensate discharge from condensing boiler to be discharged via soil or rainwater pipe ・ Conforms to BS 6798:2014 and Building Regulations Approved Document H