OMT 4.5 CFM AC Vacuum Pump and Gauge Set for R134a R22

The OrionMotorTech 4.5 CFM AC Vacuum Pump and Gauge Set is an all-in-one kit designed for automotive AC repair, home air conditioning, mini split systems, and general HVAC servicing. It gives DIYers and technicians the essential equipment required to evacuate lines, check for leaks, and recharge systems using R134a, R22, or R410a refrigerants.

At the center of the kit is a 1/3 HP vacuum pump featuring an all-copper motor and an aluminum alloy casing designed to dissipate heat and resist corrosion. It includes a built-in cooling fan to protect against overheating during extended tasks, as well as tethered brass safety caps that prevent oil spills when moving the unit. Maintenance is straightforward thanks to an integrated oil sight glass for level checks and a bottom drain valve for quick fluid changes.

The package also features a 4-way precision manifold gauge paired with 4-layer color-coded hoses capable of withstanding 800 psi working pressure and 4,000 psi burst pressure. To streamline setup right out of the box, the bundle supplies an electronic leak detector, R134a can taps, quick couplers, R410a adapters, and 0.26 quarts of vacuum oil. Everything packs neatly into the provided carrying case for organized storage.

While the set covers a broad range of hardware, it requires users to handle regular oil upkeep and perform manual setups across different fittings. Buyers should also note that the manufacturer does not specify the exact lengths of the included hoses or provide detailed sensor specifications for the leak detector.

Verdict: This comprehensive kit is an excellent choice for anyone needing a complete, multi-refrigerant evacuation and diagnostic setup for vehicles or home HVAC units. It delivers all the necessary adapters, gauges, and pump power in a single portable package.

• Pump Flow Rate: 4.5 CFM
• Motor Power: 1/3 HP
• Motor Material: All-copper motor
• Casing Material: Aluminum alloy
• Hose Working Pressure: 800 psi
• Hose Burst Pressure: 4,000 psi
• Included Oil Volume: 0.26 qt
• Refrigerant Compatibility: R134a, R22, R410a

A great fit if you:

• Service car air conditioners, home AC units, or mini split systems using R134a, R22, or R410a.
• Want a complete package that includes a leak detector, manifold gauge, oil, and adapters.
• Need a durable pump with safety caps and a carrying case for easy transport.

Consider something else if you:

• Only need a standalone vacuum pump and already own gauges and hoses.
• Work with refrigerants outside of R134a, R22, or R410a.

What refrigerants is this kit compatible with?
The set is designed to work with R134a, R22, and R410a systems, and it includes R134a can taps, quick couplers, and R410a adapters.

Does the vacuum pump come with oil?
Yes, the package includes 0.26 quarts of vacuum oil so you can use the equipment right away.

What are the pressure ratings on the hoses?
The 4-layer color-coded hoses support a working pressure of up to 800 psi and a maximum burst pressure of 4,000 psi.

What is included in the package?
The kit comes with the 4.5 CFM vacuum pump, a 4-way manifold gauge, color-coded hoses, an electronic leak detector, R134a can taps, quick couplers, R410a adapters, vacuum oil, and a carrying case.