5pc 3/8" Inch NPT Pipe 1/2" PEX Fitting (non potable water, air only) Aluminum | F375NP500PEX - ICT Billet
Apollo 1/2 in. PEX-A Barb Brass 90-Degree Elbow Fitting EPXE1212 - The Home Depot
Advance Your PEX - Boshart Industries
Pro-tip: Thinking of using Pex-A? Avoid Sharkbite (brand) brass fittings (found at some Lowes). The tiny shoulders make it next to impossible to get a proper fit on 90's and Tee's. :
SharkBite 1/2-in PEX Crimp x 1/2-in MNPT Brass Male Adapter in the PEX Pipe, Fittings & Specialty Tools department at Lowes.com