Use heavy duty brass for resistance, high temperature tolerance, and durability in harsh industrial environments without cracking or deformation engineered threads provide airtighting sealing to inert argon leakage, ensuring stable flows for safe TIGwelding operations Easy hand tightening with smooth threads allows quick setups, sturdy piece structure supports repeated disassembly for maintenance or systems modifications Features 5 / 8inch G thread ( approx 1.9cm) with female to female design, model AW430, ensuring perfect compatibility with Western adapters and inert welding systems for smooth installation Designed for welding systems, suitable with hoses, regulators, flows meters, and torches, ideal for workshops, auto repair, machining, and industrial manufacturing, Manufacturer: NMFLAB