The adjustable pressure regulator features a inlet for easy connection to argon and CO2 tanks, with a built in filtrations systems that blocks impurities to ensures purity and enhances welding Perfect for welding workshops, industrial supply systems, and laboratory where precise control of argon or CO2 pressure is important for maintaining purity and operational efficiency Designed for welding professional, industrial technician, and craft enthusiasts who require safe and adjustable pressure regulation in their daily tasks and projects For optimal use, attach regulator to the tanks before installing the T handle, open the valving, and slowly rotates the T handle clockwise to adjust to the desired pressure Constructed from brass, this welding regulator versatile connectivity option including a 9/16 inch male thread, 5/8 inch female thread, and standard 1/4 inch hose barbs, Manufacturer: Fcnjsao