SharkBite 1/2-in PEX Crimp Brass Coupling in the PEX Pipe, Fittings & Specialty Tools department at Lowes.com
PEX X PEX 90 Degree Elbow Barb Pipe Fitting 1 Inch Brass (pack of 10) - Walmart.com
Do pex fittings need to be replaced when installing a new water heater? - Home Improvement Stack Exchange
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. :
PEX Fittings - Ace Hardware
Apollo 1 in. Brass PEX-A Expansion Barb x 1 in. MNPT Male Adapter EPXMA11 - The Home Depot
Pex Fittings 1/2 Inch, SUNGATOR 25 PCS 1/2" Pex 90 Degree Elbow, Pex Fittings Set, 1/2" Pex Elbow for Pex Pipe, No Lead Brass, ASTM F1807 - Amazon.com
SharkBite 1-in PEX Crimp Brass Coupling in the PEX Pipe, Fittings & Specialty Tools department at Lowes.com