Universal Refrigerant Compatibility: Compatible with a variety of refrigerants, including R134a, R22, R12, R502, R410A, R404A, and R407C. This AC vacuum pump and manifold gauge set is ideal for automotive A/C systems, HVAC maintenance, refrigeration tasks, and industrial applications requiring high vacuum levels from a compact pump. Powerful & Efficient Vacuum Pump: This 3.5 CFM single-stage vacuum pump, powered by a durable 4-stage pure copper motor, delivers an ultimate vacuum of 5 Pa. With a 0.27 qt. (260 ml) oil capacity, it ensures efficient and reliable performance for maintaining refrigeration systems. Precise Pressure Monitoring: The upgraded PRO manifold gauge features an impressive ±1.6% accuracy and enhanced pressure resistance. It allows you to precisely monitor and adjust the pressure of your system in real time. The large viewing glass ensures clear, easy-to-read measurements every time. Secure & Easy Connection: The included three color-coded 3.94 ft (1200 mm) hoses in red, blue, and yellow for clear identification and secure connections. With a working pressure range of 800 PSI to 4000 PSI, these hoses are built to handle demanding jobs. Everything You Need in One Kit: This kit got you covered for HVAC system maintenance: 1 single-stage vacuum pump, 1 manifold gauge set, 3 color-coded hoses, 1 Leak Detector, 1 R410a Adapter, 1 set of R134a quick couplers, 1 1/4" SAE to 1/2" ACME Adapter, 2 can taps, 1 bottle of 0.35 qt. (330 ml) vacuum oil, and a convenient carrying bag for easy storage and transport.