The Rolair JC800-52BYPASS Air Compressor Actuated Valve Bypass Kit With Nylon Tube helps restore reliable air compressor operation for compatible Rolair models. It works by replacing the original actuated valve system with a bypass configuration, allowing proper pressure regulation and dependable compressor performance. Made to replace a worn or damaged actuated valve assembly, it hel... https://www.wholetoolbox.com/rolair-jc800-52bypass-air-compressor-actuated-valve-bypass-kit-with-nylon-tube/JC800-52BYPASS.html