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1 x 1/2 Copper Reducing Coupler 1-1/4 x 3/4 Copper Reducing Coupler 1-1/4 x 1/2 Copper Reducing Coupler
1 x 1/2 Copper Reducing Coupler.  Often used when fabricating condensers and other still components. 1-1/4 x 3/4 Copper Reducing Coupler. Often used when fabricating condensers and other still components. 1-1/4 x 1/2 Copper Reducing Coupler.  Often used when fabricating condensers and other still components.
1-1/2 x 3/4 Copper Reducing Coupler 1-1/2 x 1/2 Copper Reducing Coupler 2 x 1-1/2 Copper Reducing Coupler
1-1/2 x 3/4 Copper Reducing Coupler.  Often used at the top of a 1-1/2" tube still column. 1-1/2 x 1/2 Copper Reducing Coupler.  Often used at the top of a 1-1/2" tube still column. 2 x 1-1/2 Copper Reducing Coupler. Often used to transition from a 1-1/2" copper tube size plumbing tube to a 2" tube still column or vice versa.
2 x 1/2 Copper Reducing Coupler 2 x 3/4 Copper Reducing Coupler 3 x 2 Copper Reducing Coupler
2 x 1/2 Copper Reducing Coupler. Often used at the top of a 2" tube still column.
2 x 3/4 Copper Reducing Coupler.  Often used at the top of a 2" tube still column. 3 x 2 Copper Reducing Coupler.  Often used for converting a 2" tube still column to a 3" tube still column.
3" x 3/4" Copper Reducing Coupler 4" x 3/4" Copper Reducing Coupler 4" x 1" Copper Reducing Coupler
Custom formed 3" x 3/4" (CxC) copper reducing coupler. Custom formed 4" x 3/4" (CxC) copper reducing coupler. Custom formed 4" x 1" (CxC) copper reducing coupler.