SharkBite 3/4 in. PEX-A x 3/4 in. PEX-A x 1/2 in. PEX-A Brass Expansion Reducing Tee Fitting UAB412LFA - The Home Depot
Pex Fitting, 1/2'' Sharkbite x 1/2'' MNPT Connector, Lead Free
SharkBite 1/2 in. PEX-A Brass Expansion 90-Degree Elbow Fitting UAB248LFA - The Home Depot
Copper vs. PEX and Push-Fit SharkBite Comparison
Plumbing Pros Do More with SharkBite PEX & Fittings
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 x 1/2 Inch FNPT Adapter, Push To Connect Brass Plumbing Fitting, PEX Pipe, Copper, CPVC, PE-RT, HDPE, U072LFA - Pipe Fittings - Amazon.com