Elkhart Supply 41197 3/8" x 1/2" Female Pipe Thread Brass Swivel Elbow Adapter Esco Best PEX Fittings - Best PEX brass faucet termination with swivel plastic nut connects PEX and 1/2 Inch male BSP threads Commonly used to connect 1/2 Inch faucets Best PEX brass swivel elbow with plastic nut connects PEX and 1/2 Inch male threads Swivel Brass Elbow, PEX x Female Pipe Thread 3/8 Inch x 1/2 Inch female pipe thread