This 2-1/2" Liquid Filled Compound Gauge features a measurement range of 30"Hg to 15 psi, ideal for applications requiring both vacuum and pressure readings. The flanged design with a 1/4" NPT connection allows for secure installation in various settings. The liquid fill protects the gauge from vibrations and enhances accuracy, making it suitable for HVAC, refrigeration, and industrial applications. Built with durable materials, this gauge ensures long-lasting performance and reliability, making it a trusted choice for professionals.