Advanced Drainage Systems 3 in. Singlewall 90 Degree Elbow 0390AA - The Home Depot
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
IPEX Canplas 6 In. SDR 35 90 Deg. PVC Sewer and Drain Short Turn Elbow (1/4 Bend) - Brownsboro Hardware & Paint