... pressure gauge1) Case with rolling 2) Dial: 1.5", 2", 2.5", 3", 3.5", 4", 6" 3) Connection size: 1/8"air ... gauge1) Case: steel with bronze plate2) Dial: 1.5", 2", 2.5", 3", 3.5", 4", 6"3) Connection size: 1/8", 1 ... /2"4) Connection threads: NPT, BSP (G, PF), BSPT (ZG, PT)5) Connection mounting: bottom, top, left, right, center back, offset back6 ...