The 250mm vacuum gauge is a high-quality instrument designed for measuring vacuum pressure in inches of mercury. With a face diameter of 250mm, this gauge allows for easy reading of pressure levels. The direct mount feature makes it convenient to install in various locations, while the side/bottom mount positioning offers flexibility in placement. Perfect for use in hydraulics, pneumatics, pumps, and plumbing systems, this vacuum gauge is a must-have tool for industrial and office settings where accurate pressure monitoring is essential.