This manifold gauge set supports R22, R404A, R410A, and R12, including refrigerants commonly used in legacy equipment. It is well-suited for servicing home central AC and commercial refrigeration systems, delivering stable and easy-to-read performance for technicians and experienced DIY users. The kit includes the gauge assembly and test hoses, supporting tasks such as leak detection, vacuum measurement, and accurate refrigerant charging. | Vevor | | AC Manifold Gauge Set for R22 R404A R410A R12 Refrigerants, 4 Way AC Gauges with 5 ft Hoses for Automotive | Black valve body | Best Buy