Argon/CO2 Regulator Outstanding Design: The groove on the back of the round pressure gauge (ciferblat) serves as a safety relief valve. When pressure becomes excessively high, it releases pressure to prevent explosions Broad Applications: Featuring a CGA-580 inlet connector, the pressure regulator attaches effortlessly to argon and helium tanks, making it ideally suited for both MIG and TIG welding applications Corrosion Resistance: Constructed mainly from copper, this regulator offers outstanding corrosion resistance, ensuring long-term and stable performance in industrial environments High-Precision Measurement: Utilizing advanced sensing technology, the argon flowmeter delivers accurate and reliable flow readings, guaranteeing precise data Comprehensive Accessories: The package includes one argon regulator, a 9/16" x 18 nut or a male 5/8" x 18 fitting, and a standard 1/4" barbed fitting for immediate use