Charlotte Pipe 4 in. PVC DWV 90-Degree Hub x Hub Elbow PVC003001400HD - The Home Depot
Charlotte Pipe 1-1/4 In. Slip x Spigot Schedule 40 90 Deg. Street PVC Elbow (1/4 Bend) - Roush Hardware
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
Rainbow Dream 4-Way 3/4 Inch PVC Elbow Corner Tee Fittings 4 Way PVC Pipe Fi... for sale online | eBay