Butt Weld 45° 90° 180° LR/SR Elbow/Return, Butt Weld 45° 90° 180° 1.5D 2D 3D 5D LR/SR Bend, Butt Weld Concentric/ Eccentric Reducer, Butt Weld Equal/Reducing Tee, Butt Weld Equal/Reducing Cross, Butt Weld End Caps, Butt Weld Union. 45° 90° 180° LR/SR PE/BE Elbow/Return 45° 90° 180° 1.5D 2D 3D 5D LR/SR Bend Equal/ Reducing Tee Concentric/Eccentric Reducer End Caps