HarrisĀ® 30RZ PSI/200 kPa 1.5 in. replacement pressure gauge has a gold metallic painted steel case, polycarbonate clear threaded one-piece lens, steel dial and brass lower mount male stem with 1/8 in. NPT thread connection. The dual scale red and black markings on a white background makes it easy-to-read. This gauge is ideal for gas distribution to denote the pressure levels on regulators using acetylene. "Use No Oil" marking on dial face for clarification. This gauge meets ANSI B40.1 standards.