2-1/2 -30 - 30 Pounds Per Square Inch 1/4 Lower Mount Liquid FilledThe 2 1 2" 30 30 PSI 1 4" Lower Mount Liquid Filled Pressure Gauge is a high performance instrument designed for precise pressure measurement in demanding environments. With its robust construction and liquid filled design, this gauge effectively minimizes vibration effects, ensuring accurate and reliable readings. It is an ideal solution for applications requiring durability and precision in measuring pressure within the 30 to 30 PSI range.