Amazon.com: 1" OD 90 Deg. Mild Steel Mandrel Bend, 16 Gauge - 1" Radius, 6" Legs : Automotive
Buy Wholesale China 90-degree 4-d Bend Pipe Elbow, Made Of Carbon And Alloy Steel, Used In The Chemical Industry & 90-degree 4-d Bend Pipe Elbow | Global Sources
ADS 4-in x 4-in 90-Degree Corrugated Elbow Fittings in the Corrugated Drainage Pipe Fittings department at Lowes.com