There are only four or five different fixed-angle elbows available for piping systems. In rigid systems, bending the pipe or using flexible elbows is usually not appropriate. The All-Bend® is a rigid pipe elbow fitting with a selectable angle. It is currently available in PVC and ABS plastic. The All-Bend® can be used with PVC and ABS plastic DWV pipe and fittings (ASTM D2665 and ASTM D2661) and also with PVC plastic schedule 40 pressure pipe and fittings for potable water (ASTM D2466).