VACUUM GAUGE (PRESSURE GAUGE); PRESSURE RANGE: 0 - 60 PSI / 0 - 4 KG/CM2; THREAD DIAMETER: BSPT 1/8"X28; HOUSING DIAMETER: 40 MM; CONNECTION TYPE: REAR; FOR USE WITH FISHER 3580/G POSITIONER, STEEL HOUSING, BLACK EPOXY PAINT FINISH, BRASS MECHANISM, BRASS TUBE