DaTo DSC 1050 Manifold Gauge - R-134a high quality common cool gas meter is enclosed the 1107 adjustable coupler. R-134a manifold gauge with three 60” color-coded hoses with sight glasses that are durable and reliable. DaTo manifold gauge is chamber device that is used to control the flows of pressure or gases. DaTo manifold gauge set and interpret the pressures of the air-conditioning system as it operates. These pressures tell the technician if the system is operating correctly or if there is a problem with the system. The gauge is also used to release moisture and sludge. The manifold valve is used in air conditioning or HAVC systems. It consists of a manifold block, two hand valves, three refrigerant hoses, and two pressure gauges. The hose on the left is blue and is connected to the low pressure/suction side of the air conditioning system. Because the gauge reads in two different ranges of pressure, it is usually called a compound gauge. The high-pressure side is red colored.