Amazon.com: 1/2 x 3/4 Inch PEX Male Threaded NPT Elbow 90 Connector Fitting Crimp Brass for PEX Pipe Tubing, No Lead Pack of 1 : Industrial & Scientific
Apollo 1/2 in. x 3/4 Brass PEX-A Expansion Barb Reducing 90-Degree Elbow EPXE1234 - The Home Depot