The MIDWEST CONTROL VSB20-030 is a reliable 2" dry vacuum gauge that measures vacuum levels from 0 to 30"Hg. Designed with a back mount and a 1/4" NPT connection, this gauge is perfect for integration into various systems. Its robust construction ensures accurate readings and durability, making it ideal for HVAC and industrial applications. The clear dial and easy-to-read scale enhance usability, allowing professionals to monitor vacuum conditions effectively. This gauge is an essential tool for maintaining optimal system performance.