10pcs) EZ-FLUID Plumbing 1/2" C X C LF Copper Slip Coupling Pressure Copper Fitting Without Stop,Sweat Solder Connection for Residential,Commercial - Amazon.com
Cast Bronze Coupling with Drain - Copper to Copper — COPPERTUBINGSALES
Uxcell 7/8" ID Straight Copper Coupling Copper Connector Joint Pipe Fitting with Rolled Tube Stop Clamp to Install - Walmart.com