The 4" Liquid Fill Gauge with a 1/4" bottom feed and a range of 0-30 HG from Process Equipment Company is designed for accurate pressure measurement in vacuum applications. This gauge features a liquid-filled design that dampens vibrations, ensuring stable readings. With a pressure range of 0-30 inches of mercury, it is suitable for various industrial applications. The durable construction ensures longevity, while the clear dial provides easy readability. Ideal for use in laboratory and industrial settings, this gauge is a reliable choice for professionals.