Description This is a custom set of inboad CTIS lines.  They use the patented Stewart Stevenson male NPT Swivel Plug like the OEM system.  These are also coated in a clear rubber tubing to prevent chafing on other parts of the truck. Unique Features: Each wheel has its own line directly from the manifold Significantly reduced tire inflation time Reduced complexity for improved reliability and serviceability All lines are pressure tested during manufacture. This is a Moab tested product.