This is a J.W. Harris regulator assembly, part number 4400229, also referenced as 301AR-58010. It comes as a brand new unit, complete with a 10-foot hose attached. This is a professional-grade piece of equipment, typically used for controlling gas flow in welding, cutting, or other industrial gas applications. The regulator is the part that screws onto your gas cylinder (like acetylene, oxygen, propane, etc.) and reduces the high pressure from the tank down to a safe, usable working pressure for your torch or tool. The 10-foot hose gives you a good amount of reach and flexibility to move around your work area without dragging the whole cylinder. J.W. Harris is a trusted name in the welding and industrial supply world, known for making durable, reliable products. If you're replacing a faulty regulator, setting up a new workstation, or need a specific assembly for a project, this is a solid, ready-to-use component. Make sure this part number matches the one you need for your specific setup or equipment before purchasing. It's a straightforward, no-nonsense product for pros and serious DIYers.
