ALL ST. ST. PRESSURE GAUGES, MODEL MGS18. DIAL 2.5_ (63 MM) CASE DIAMETER. BOTTOM CONNECTION. RANGE 0...100 PSI, 1/4_ NPT MALE PROCESS CONNECTION, WHITE ABS DIAL WITH BLACK MARKINGS AND FIGURES, ST. ST. CASE AND CRIMPED RING, DIRECT МOUNTING, ST. ST. PRECISION MOVEMENT, BLACK ALUMINIUM POINTER, ACCURACY ±1,6%, GLYCERINE FILLING, IP67 PROTECTION DEGREE, POLYCARBONATE WINDOW