Amazon.com: 1pc I.D 42mm/54mm Reduce Copper End Feed Reducer。Copper Adapter Tube 1 Inch I.D. Large Version 7077642-707764。Supply | PowerPEX® Systems | PowerPEX® ASTM F1807 | Fittings。Amazon.com: PATIKIL 1/2inch ID End Feed Copper Liner Insert。
Brass Female Thread:1-1/2'' Copper Inner Diameter:42 mm Each bid for 1 PC!