Vacuum Gauge 40mm or 50mm Dial Gauges Vertical or Horizontal 1/8 1/4 BSPT
50mm Gauges 1/8 BSPT (9mm OD) or 1/4 BSPT (13mm OD). 40mm Gauges 1/8 BSPT (9mm OD). 1/4 BSP(T) is 13mm and 1/8 BSPT 9mm approx. 40mm or 50mm Dial. Vacuum Gauge. Maximum Process Temperature 60 C. Range 0/-30"Hg Dual Scaled 0/-1 Bar.