SharkBite 1-1/4 in. Push-to Connect Brass 90-Degree Elbow Fitting UXL0235 - The Home Depot
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. Push-to-Connect Brass 90-Degree Elbow Fitting U248LFA - The Home Depot
SharkBite 1/2 Inch 45 Degree Elbow, Push to Connect Brass Fitting, PEX Pipe, Copper, CPVC, PE-RT, HDPE, U648LFA - Walmart.com
SharkBite Max 1/2-in Push-to-Connect 90-Degree Elbow (4-Pack) in the Push to Connect Fittings department at Lowes.com
SharkBite 3/4 Inch 90 Degree Elbow, Pack of 4, Push to Connect Brass Plumbing Fitting, PEX Pipe, Copper, CPVC, PE-RT, HDPE, U256LFA4 - Amazon.com
SharkBite Plumbing Products: Pipe Fittings, Adapters, PEX & More