Oxygen, the life savior gas has tremendous usage in the medical field. JTC Valve sales introduces the best quality HD Final line pressure regulators for medical and industrial applications. The BR-1780 series pressure regulator has a body and other valve parts made of forged brass. The diaphragm is made from Nitrile with TFE liner. The seat disc and O ring is the standard Viton. High quality stainless steel is used for the springs, fasteners and the adjusting screw.