This is a complete chemical plant in one set.
Set Contains:
4 Large Diameter (5/8") straight pipeline pieces (6" long each)
4 Large Diameter (5/8") corner pipeline pieces (2 1/4" x 2 1/4" each)
4 Small Diameter (1/2") straight pipeline pieces (6" long each)
4 Small Diameter (1/2") corner pipeline pieces (1 1/2" x 1 1/2" each)
1 Pump Station
1 Safety Shut-off
1 Storage Tank