Orion Motor Tech 3-Way AC Manifold Gauge Set, 5-ft Hoses — Brass/Aluminum, 0–500 PSI Gauges

Orion Motor Tech’s OMT 3-way AC manifold gauge set is a professional-grade toolkit for diagnosing, charging, and servicing vehicle air conditioning systems using R134a, R12, R22, and R502 refrigerants.

This compact kit brings workshop-capable gauges, color-coded five-foot hoses, and a set of service fittings in a molded case so both professional technicians and informed DIYers can measure pressures, attach refrigerant cans, and perform routine A/C checks. Built from brass, aluminum, PVC, and reinforced plastics, the set balances durability and weight for repeated use in garages, mobile service vans, or home shops.

How do the gauges and hoses work together to read system pressure?

The pair of analog gauges shows low- and high-side pressures simultaneously so you can compare readings and spot abnormalities. Hoses connect the manifold to the vehicle service ports and to a refrigerant source for charging or recovery. The instrument panel uses Fahrenheit units with clear markings for ease of reading.

• Blue low-side gauge: 0–350 PSI for suction measurements.
• Red high-side gauge: 0–500 PSI for discharge measurements.
• Three 5-foot hoses: red (high), blue (low), yellow (service/refrigerant).
• Hoses rated with 3000 PSI burst strength and 600 PSI working pressure.

Which refrigerants and service tasks is this set compatible with?

The OMT manifold set is specified for common automotive and light-commercial refrigerants including R134a, R12, R22, and R502, allowing versatile use across older and newer systems. Typical tasks include pressure checks, leak isolation, topping off refrigerant, and other standard service steps when used with proper recovery equipment and safety practices.

• Compatible refrigerants: R134a, R12, R22, R502.
• Suitable for pressure diagnosis, refrigerant charging, and basic recovery support.
• Includes a piercing-style can tap and adapters for can or bottle connection.
• Not a standalone refrigerant recovery machine—use per local regulations.

What durability and convenience features are included for workshop use?

The manifold body and fittings use brass and aluminum to resist corrosion and maintain reliable sealing under repeated connection cycles. Hoses and plastic components are selected to tolerate workshop handling and occasional drops, while the included case organizes parts for mobile service or storage.

• Solid brass and aluminum manifold and fittings for longevity.
• Reinforced PVC hoses and durable plastics for everyday use.
• Custom molded case holds manifold, hoses, couplers, tap, and adapter.
• Parts diagram and step-by-step manual included for reference.

How easy is it for a novice to use safely and correctly?

While the kit is engineered for professionals, the clear color coding, readable gauges, and included manual make basic procedures approachable for informed DIY users. Follow the instructions, use proper protective equipment, and comply with refrigerant-handling regulations to ensure safe operation.

• Color-coded hoses minimize hookup errors (red = high, blue = low, yellow = service).
• Can tap (piercing-style) and adapter simplify connection to standard canisters.
• Detailed manual and parts diagram guide common tasks step by step.
• Recommended that novices obtain training or seek professional assistance for complex recovery work.

Who is this for: The Orion Motor Tech OMT 3-way AC manifold gauge set suits automotive mechanics, mobile service technicians, fleet maintenance teams, and experienced DIYers who perform routine A/C system checks, refrigerant top-offs, and basic diagnostics. It’s intended for users familiar with refrigerant safety and local regulations; it complements recovery and vacuum equipment in professional service workflows.