Introducing the McAlpine BOSS82-CAST-BL 3 Inch Cast x 1.25 Inch Black Soil Pipe Boss Connector. This high-quality soil pipe accessory is designed to provide a secure and reliable connection for your plumbing system. The pipe diameter OD is 3 inches, and the unit quantity is one. The McAlpine brand is known for its durability and reliability, making it a top choice for plumbers and contractors alike. This unit type is a unit, and the supplier pack size is one. The pipe is cast and has a black finish, making it a sleek and professional addition to any plumbing system.