This is a single stage, single dial oxygen regulator made of brass material. It is manufactured with good quality brass material. Made with high grade raw material this is a trusted and tested quality product. Comes with pressure key and nut nipple for hose pipe. Features: Designed for versatile industrial applications including welding, cutting, heating, and brazing Ensures consistent gas flow with precise pressure adjustment Leak-proof operation for enhanced safety Durable die-forged brass body for strength and long service life Equipped with a reset-type safety relief valve for protection Single-piece forged brass construction for maximum gas tightness Safety pressure gauge with baffle wall design Integrated metal filter at the inlet to block dust and impurities