2-1/2″ Compound Gauge 30 0 30 VAC/PSI Application. This gauge is intended for general service conditions and this gauge work from Inches of Mercury to Pounds per square inch. For pressure or vacuum service on air, water, gas or other mediums that do not attack brass. Gauge should be protected from excessive temperature and debris that may clog orifice.
The National Vacuum Equipment Part Number is NVE-408-200-007.