Bridge gauge 2-way Bosch

2-way gauge bridges (sets) are an essential tool for servicing air conditioning and refrigeration systems. They consist of two gauges – a low pressure (blue) and a high pressure (red) gauge – and two valves that regulate the flow of refrigerant through the connected hoses. These bridges feature a rugged aluminum or brass body, large color-coded rotary knobs for convenient operation, and often protective rubber covers for the gauges. They are used for filling, draining, diagnosing and checking system pressures.