Orion Motor Tech AC Gauge Set for R134a/R12/R22/R502 — 5 ft Hoses, Hybrid Anti‑Shock Gauges

This compact kit brings a robust set of tools for both do-it-yourselfers and technicians who work on vehicle air conditioning or small refrigeration systems. It combines a three-way gauge, durable color-coded hoses, quick couplers, and adapters to make pressure measurement, evacuation, and refrigerant transfer straightforward and repeatable. Built for everyday shop use, the components are engineered to resist shock and normal wear while offering flexible compatibility across common refrigerants.

How does the gauge set measure and display system pressure?

The OMT set features hybrid anti-shock gauges that merge an oil-filled core with a dry dial. This design cushions internal movement to improve durability while keeping a crisp, readable face in colder conditions. The dual-gauge layout shows both high and low pressures simultaneously for fast comparisons during diagnostics.

• 68 mm high- and low-pressure gauges with hybrid oil-filled core
• Dry dial delivers clear readings at low temperatures
• Simultaneous readout for quicker system analysis

Which attachments and adapters come with the kit?

The kit is packaged with the essentials to connect to various service points without hunting for extras. You get two adjustable 1/4" quick couplers, an Acme adapter for larger fittings, and both puncture-style and self-sealing can taps for different refrigerant containers. That versatility covers older cans and modern self-sealing refrigerant cans.

• Two adjustable 1/4" quick couplers for secure service-port connections
• 1/4" to 1/2" Acme adapter for cylinder compatibility
• Puncture and self-sealing can taps to handle different refrigerant cans

Are the hoses and fittings durable enough for workshop use?

Yes — the set uses color-coded PVC hoses with multiple reinforcement layers to handle frequent use and pressure spikes. Rated for daily service pressures up to 600 psi and a 3000 psi burst rating, the hoses give operators confidence when pulling vacuum or charging systems. The blue, red, and yellow color scheme keeps low, high, and service lines unmistakable on busy jobs.

• Blue low-pressure, red high-pressure, yellow charging hose for easy identification
• Four-layer PVC reinforcement for longevity and abrasion resistance
• Daily working pressure up to 600 psi, 3000 psi burst rating for safety

Which refrigerants and tasks does this set support?

The OMT manifold gauge kit is compatible with R134a, R12, R22, and R502, making it suitable for a wide range of automotive and small HVAC systems. Use it to read pressures, evacuate systems, and refill refrigerant when paired with the correct service vacuum pump and refrigerant source. It’s not a substitute for system-specific guidance or safety procedures, but it supplies the hardware needed for common maintenance steps.

• Works with R134a, R12, R22, and R502 refrigerants
• Intended for pressure reading, evacuation, and charging workflows
• Requires compatible vacuum pump and correct refrigerant handling practices

Who is this for? Technically minded DIYers, independent mechanics, and HVAC technicians who need a versatile, economical manifold gauge set will find this OMT kit useful. It’s sized for garage and shop environments where reliability and clear readouts matter, and it provides the adapters and taps to bridge older and newer refrigerant canister types. If you already follow safe refrigerant handling and local regulations, this set supplies the practical tools to perform routine diagnostics, service, and charging on many common systems.