The Plumber's Choice 3/4 in. Brass PEX Barb x 1 in. MIP 90-Degree Elbow Pipe Fitting (5-Pack) 34105PXML - The Home Depot

Apollo 3/4 in. Brass PEX-B Barb 90-Degree Elbow APXE3434 - The Home Depot

SharkBite 1/2-inch Brass PEX 90-Degree Elbow

The Plumber's Choice 3/4 in. x 1/2 in. Reducing Elbow Pex Fitting, Expansion Pex A Elbow Lead Free Brass, 90° for Use in Pex A-Tubing XQSM3412-OM - The Home Depot

Apollo 3/4 in. Plastic PEX-B Barb 90-Degree Elbow (5-Pack) PXPAE345PK - The Home Depot

The Plumber's Choice 3/4 in. x 3/4 in. Brass Male Sweat x Pex Barb 90-Degree Elbow Pipe Fitting (5-Pack) 34345PMSL - The Home Depot

The Plumber's Choice 3/4 in. Brass Female Sweat x 1/2 in. Pex Barb 90-Degree Elbow Pipe Fitting (5-Pack) 34125PXSL - The Home Depot

Sioux Chief 3/4 inch x 1/2 inch Plastic 90-Degree Barb x MIP Elbow

The Plumber's Choice 3/4 in. x 3/4 in. Plastic PEX Poly Alloy 90-Degree Elbow PEX x MPT Barb Pipe Fitting (5-Pack) 3434PPML-5 - The Home Depot

Apollo 3/4 in. x 1/2 in. Plastic PEX-B Barb 90-Degree Elbow (5-Pack) PXPAE12345PK - The Home Depot