The Victor SR450D-540 Oxygen Regulator (P/N: 0781-0527) is a heavy-duty, single-stage cylinder regulator engineered to provide precise and reliable oxygen pressure control for industrial cutting, welding, heating, and fabrication applications. Manufactured with a rugged die-forged brass body and housing cap, the regulator delivers exceptional durability and long service life in demanding industrial environments. It features a stainless steel diaphragm for accurate pressure regulation, large easy-to-read brass gauges, a forged T-handle for smooth pressure adjustment, and a sintered inlet filter to protect internal components from contaminants. Designed for medium- to high-capacity gas delivery, the SR450D-540 offers a delivery pressure range of 5–125 PSIG, a maximum inlet pressure of 3000 PSIG, and a CGA-540 cylinder connection, making it an ideal choice for professional oxy-fuel cutting, welding, maintenance, and general fabrication operations where dependable gas flow and consistent performance are essential.