Charlotte Pipe 4 in. PVC DWV 90-Degree Hub x Hub Elbow PVC003001400HD - The Home Depot
IMPERIAL 4-in Galvanized Steel Round Adjustable 90 Degree Duct Elbow in the Duct Transitions & Connectors department at Lowes.com
4 Inch Aluminized 90 Degree Exhaust Elbow 4"OD x 18" inch Arms Truck Pipe New | eBay
Amazon.com: X AUTOHAUX 2pcs OD 4 Inch 90 Degree Mandrel Bend Elbow SS304 Stainless Steel Bend Tube Exhaust Elbow Pipe for Car Modified Exhaust System 4" Piping Silver Tone : Automotive
Pipe Fittings Direct. 4 inch long radius 90 deg schedule 40 weld on elbow
PVC Pipeworks 3/4-in 90-Degree PVC Elbow in White (8-Pack) in the PVC Pipe & Fittings department at Lowes.com
Advanced Drainage Systems 4 in. Singlewall 90 Degree Elbow 0490AA - 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
Amazon.com: Squirrelly 4.0" to 4" Inch Elbow Black Silicone Coupler 3 Layers Reinforcement 90 Degree Intake Intercooler Piping : Automotive