MID-WEST DIFFERENTIAL PRESSURE GAUGE, MODEL 120-AA-00-00, RANGE & SCALE 0 – 250 MBAR, BODY MATERIAL: ALUMINUM, DIAL SIZE: 2 1/2” (63 MM) ROUND, SEALS MATERIAL: BUNA-N, PROCESS CONNECTION: 2 X 1/4” NPT-F BACK WITH HIGH, PRESSURE PORT ON THE RIGHT SIDE, FLOW DIRECTION FROM, RIGHT TO LEFT SIDE (R->L), MEDIA TEMPERATURE RANGE: -40°C TO +93°C (200°F), MAXIMUM WORKING PRESSURE 3000 PSI (200 BAR)