No copper coupling needed any more, only one side need to be welded. For a better connection for the two pipes, perfect expanding and plumping tool. The new expander was lubrised to make it easier to expand.
Wostore 3/8 Pipe Bender Heavy Duty Tubing Bender Tube Bender Roller 0-180
Wostore 1/2 Heavy Duty Tubing Bender Tube Bender Roller 180 Hvac Copper Tool
Copper Tube Fittings Hydraulic Pipe Crimping Tool with 1950N-1/2 to 1-1/4 inch
Copper Tube Fittings Hydraulic Pipe Crimping Tool with 1/2 inch,3/4 inch and
Copper Tube Fittings Hydraulic Pipe Crimping Tool with 1/2",3/4" and 1" Jaw
