It is not a Ring Gauge, It is auto generated by Flipkart. We are manufacturer and Traders of industrial goods and deal with more than 90000 equipment's. Here we described about Dial pressure Gauge which body is made by Mild Steel, Connection material made by Brass. Dial Side 6"(300mm), Range: -760 to 0 PSI, Connection Type is Bottom/Vertical Male 3/8" BSP and its Accuracy ±1.5 to 2%. use for Industrial