- New
51198 is an Elkhart Supply Flair-It 90-degree swivel elbow for compatible RV fresh-water plumbing systems. It features a 1/2" PEX barbed connection and a 1/2" female swivel threaded connection. The brass fitting is designed to provide a practical connection between PEX tubing and a female threaded component, while the swivel design facilitates alignment during installation. Verify the original fitting and connection specifications before replacement.