Charlotte Pipe 1 in. PVC Sch. 40 90-Degree Elbow PVC023001000HD - The Home Depot
NIBCO® 1/2" Socket PVC 90-Degree Elbow - PROPACK of 10 at Menards®
Amazon.com: NDS 4P02 PVC 90-Degree Elbow, X Hub solvent-weld connections, for Use with 4-Inch Sewer and Drain Pipes, White, 1 Count (Pack of 1) : Everything Else