Precisely monitor your hydraulic systems with the Buyers HPGS3 Silicone-Filled Pressure Gauge. This durable 2.5-inch diameter gauge features a robust stainless steel case and bezel, a 1/4 inch NPT stem mount, and a built-in relief valve to protect against overpressure. Accurately measuring from 0-3000 PSI with a 1.6% accuracy, its silicone filling ensures reliable readability and vibration protection in extreme conditions for truck and trailer hydraulic applications.