A Wall Mounted Inclined Manometer is a device used to measure pressure differences in a fluid system. They are commonly used in HVAC (Heating, Ventilation, and Air Conditioning) systems, cleanrooms, laboratories, and industrial processes to measure pressure differentials across filters, fans, ducts, and other components. It consists of a U-shaped tube partially filled with a liquid (typically water or mercury) and mounted on a vertical surface, such as a wall. Wall Mounted Inclined Manometer provide a simple yet effective method for measuring pressure differences in fluid systems, making them valuable tools in various industrial and HVAC applications.