3/4”x1/2" Lead-free* PEX [Crimp] Reducing Elbow - The Brass Warehouse
Amazon.com: SharkBite 3/4 Inch x 1/2 Inch 90 Degree Reducing Elbow, Push to Connect Brass Plumbing Fitting, PEX Pipe, Copper, CPVC, PE-RT, HDPE, U274LFA : Everything Else
SharkBite 3/4-in PEX Crimp x 1/2-in PEX Crimp Poly 90-Degree Reducing Elbow (5-Pack) in the PEX Pipe, Fittings & Specialty Tools department at Lowes.com