DuraChoice 2-1/2" Oil Filled Vacuum Pressure Gauge - Stainless Steel Case, Brass, 1/4" NPT, Center Back Mount Connection -30HG/0

Application: Water, Oil, Air & Hydraulic Application

Dial Size :2-1/2" Dial Size (Crimped Casing)

Accuracy: +/- 3/2/3%

Scale: Dual Scale - inHG/Bar

Movement: Copper Alloy

Bourdon Tube: Copper Alloy

Window: Polycarbonate

Case: Stainless Steel case for protection in harsh environments

Connection: Copper Alloy Center Back Mount; 1/4" NPT (for 2-1/2" dial)

Normal Ambient Temp.: -4F to +140F (-20C to +60C)

Liquid Filling: Glycerin oil filled to enhance the reliability and integrity; helps dampen the effect of vibration and pulsation; lubricates the movement and extends the life of gauge.