Charlotte Pipe 1/2 in. PVC Schedule. 40 90-degree MPT x FPT Street Elbow Fitting PVC023070600HD - The Home Depot
1" x 1/2" Schedule 40 PVC Reducing 90 Degree Elbow, slip x FPT 407-130
1/2" MPT Elbow - 1" PVC Slip | The Bucket Company
FORMUFIT 1-1/2" 3-Way PVC Elbow Furniture Grade Fitting in White, 1.9" Actual ID, (Pack of 4), Made In USA, UV-Resistant, Impact-Proof, Easily Build 3-Point Corners with PVC Pipe - F1123WE-WH-4: Amazon.com: Industrial