The Weldmark® by Victor 250 manufactured by IWDC is a light duty, single stage, nitrogen regulator, designed to be used with nitrogen. Best paired with industry types such as HVAC and purging. This 2 in diameter gauge is made with a brass body, and neoprene diaphram. Connection details include 0.96 in male side port 580 CGA inlet, with NGO thread standard and male outlet, with a right hand thread at 18 threads per inch. The inlet pressure cylinder max is rated at 3000 psi. The outlet pressure min/max is rated at 10/500 psi. Meets or exceeds ETL Listed to UL Std 252 standards.