The Dwyer Magnehelic Pressure Gauge is a reliable and high-quality pressure gauge designed for hydraulics, pneumatics, pumps, and plumbing applications. With a maximum pressure capacity of 15 psi (1 bar) or 80 inches of water, this gauge is suitable for measuring air pressure in various industrial settings. The unisex face diameter and 1/8 inch connection diameter make it versatile for use in different systems. The back mount design ensures easy viewing of the pressure readings, making it a convenient and practical tool for monitoring and controlling air pressure levels in industrial processes.