HYDRAULIC TUBE EXPANDER 1.Manual hydraulic mechanism designed can expand from 10mm to 42mm O.D. ... -209+CT-207-----For inch:3/8",1/2",5/8",3/4",7/8",1",1-1/8"O.D.Tubing. Any 3 ... sizes of these 5 expander heads are optional: 1-1/4",1-3/8",1-1/2",1-5/8",O.D.Tubing CT-300ML----NEW ... -312+CT-208------------------For inch: 3/8", 1/2", 5/8", 3/4", 7/8", 1", 1-1/8" O.D.Tubing. CT-300M ...