SharkBite 1/2 in. PEX-A Brass Expansion 90-Degree Elbow Fitting UAB248LFA - The Home Depot
Brass Pex Barb x MPT 90 Degree Elbow - Mobile Home Outfitters
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