The A.J. Antunes 8103116202 is a dependable pressure switch designed for precise monitoring in HVAC and industrial systems. With an adjustable pressure range of 1 to 20 inches water column (WC) and an open-low configuration, it ensures reliable detection of low-pressure conditions. The 1/4-inch NPT connection allows for easy installation in various applications. https://www.partshnc.com/8103116202-aj-antunes-120-wc-openlow-mr-14-npt