The 2-1/2" Liquid Filled Compound Gauge measures pressure from 30"Hg to 300 psi, designed for lower mount installation with a 1/4" NPT connection. This gauge is ideal for applications requiring accurate pressure readings in both vacuum and pressure ranges. Constructed with durable materials, it ensures reliability and longevity in various environments. The liquid-filled design minimizes vibration and enhances readability, making it suitable for industrial and commercial use. Compliance with industry standards ensures safety and performance.