PVC Pipeworks 1/2-in 90-Degree PVC Elbow in White (10-Pack) in the PVC Pipe & Fittings department at Lowes.com
1-1/2" 3-Way PVC Furniture Elbow - Warren Pipe and Supply
1-1/2 in. 3-Way Elbow PVC Fitting (Box of 60) — FORMUFIT Direct
Formufit 2 in. Furniture Grade PVC 3-Way Elbow in White (4-Pack) F0023WE-WH-4 - The Home Depot
FORMUFIT 1-1/2" 3-Way PVC Elbow Furniture Grade Fitting in Black, 1.9" Actual ID, (Pack of 4), Made in USA, UV-Resistant, Impact-Proof, Easily Build 3-Point Corners with PVC Pipe - F1123WE-BK-4: Amazon.com: Tools
Dura PVC Schedule 40 Slip 3-Way Elbow 1/2" x 1/2" x 1/2" | eBay
Amazon.com: letsFix 4 Way PVC Fittings 1-1/2 Inch (10-Pack), Furniture Grade PVC Pipe Connector PVC Elbow for All DIY PVC Structure and Frames - Fits 1-1/2" Sch 40 PVC Pipes : Industrial & Scientific