Type of product: 90 degree sweep elbow/bend Specification: Socket x Socket Most common size reference: 1.5 inch Commonly used with: 1.5 inch rigid pipe and 1.5 inch flexible rigid pipe. Additional notes: If you use a sweep when making a 90 degree turn in the pipe work it will help improve flow. Best to use a plumbing cleaner then pipe cement to assemble. Pipework pushes inside this part.