Buy 1/2" PEX Compression Manifold Adapter for only $1.35
SharkBite 3/4-in PEX Crimp Brass 90-Degree Elbow in the PEX Pipe, Fittings & Specialty Tools department at Lowes.com
The Plumber's Choice 1/2 in. Straight Coupling Pipe Fittings Push to Connect PEX Copper CPVC Brass (5-Pack) 125UPSC - The Home Depot
How to Install PEX Tubing with Quick Connect Fittings
Pex Fittings Tee Push Fit Plumbing Tee 1/2 inch, Push-to-Connect Plumbing Fittings Brass Pipe Connector T Fittings for Copper PEX CPVC No Pb (2PCS, 1/2 Inch(1/2") - Amazon.com