... & glass dial face Pressure Gauge 1) Dial size: 1.5, 2, 2.5, 3, 3.5, 4,62) Connection size: 1/8, 1/4, 1 ... /2, 3/83) Connection threads: npt, bsp (g, pf), bspt (zg ... Kpa, mpa; in Hg, cmHg or mmHg)7) Accuracy: 3% - 2% - 3% , ±2.5%8)Lip Material: Plastic, plastic dial face, glass dial ...