Orion Motor Tech 3-Way AC Manifold Gauge Set with 5 ft Hoses — R134a/R12/R502/R22 Compatible, Brass Manifold & Oil-Filled Gauges

Orion Motor Tech’s OMT 3-way AC manifold gauge set is a complete, durable toolkit for measuring, evacuating, and recharging automotive and light HVAC refrigerant systems.

This compact manifold assembly combines hybrid anti-shock gauges, 5 ft. color-coded hoses, multiple couplers and adapters, and a moisture indicator to give DIYers and technicians a single solution for R134a, R12, R502, and R22 systems. Built from brass, ABS, and reinforced PVC, the set balances accuracy, resilience, and everyday usability so you can diagnose pressures, pull vacuums, and add refrigerant with confidence.

How accurate and durable are the gauges?

The pair of 2.6-inch gauges use a hybrid anti-shock design: an oil-filled core to absorb impact and protect internal parts and a dry dial face for reliable cold-weather readings. Calibration screws let you fine-tune readings to maintain the stated accuracy of around 1.6% over time. The overall housing and fittings are metal and heavy-duty plastic to resist shop wear.

• 2.6" high and low pressure dials with oil-filled core and dry dial face
• Calibration screws included for periodic adjustment
• Solid brass manifold and fittings for corrosion resistance
• ABS and rubber body components for impact protection

What hoses, couplers, and adapters are included for service tasks?

The kit ships with three 5-foot, color-coded PVC hoses—blue for low, red for high, and yellow for service/charging—each reinforced with four internal layers for routine working pressures. You also get R134a quick couplers, a 29° adapter, piercing and self-sealing can taps, and other service fittings to cover common vehicle ports and charge canisters. Those extras reduce the need for improvised connections during maintenance.

• Three 5 ft. color-coded PVC hoses with 4-layer reinforcement
• R134a couplers and a 29° service adapter for multiple ports
• Piercing and self-sealing can taps for on-canister charging
• Standard brass fittings compatible with common service valves

Can this set handle different refrigerants and shop jobs?

Yes—the manifold and included fittings are compatible with R134a, R12, R502, and R22 refrigerants, making the set versatile for older and newer systems. Use it to check static and operating pressures, evacuate lines, recover (with proper equipment), and recharge systems at the correct service pressures. Always follow refrigerant handling regulations and use recovery equipment where required.

• Works with R134a, R12, R502, and R22 refrigerants
• Suitable for pressure checks, evacuation, and controlled charging
• Includes moisture indicator to monitor system contamination
• Useful for both light professional work and DIY maintenance

How does the kit perform in daily workshop use?

Components are designed for frequent handling: hoses rated to 600 psi working pressure (3,000 psi burst), brass fittings to resist wear, and a manifold layout that keeps valves reachable during service. The moisture indicator gives a quick visual cue about coolant condition, while the robust hoses and anti-shock gauges reduce downtime from damaged tools. The kit’s portability also makes it convenient for mobile repairs.

• Hoses rated 600 psi working, 3,000 psi burst for durability
• Moisture indicator for immediate system condition checks
• Ergonomic valve placement for one-handed operation
• Compact build suited to bench or mobile use

Who is this for: The Orion Motor Tech OMT 3-way manifold gauge set is aimed at experienced DIYers, independent mechanics, and HVAC technicians who need a reliable, all-in-one gauge and hose kit for passenger vehicles and light commercial systems. If you service multiple refrigerants, perform routine diagnostics and recharges, and value ruggedness plus adjustability, this set covers core service tasks without requiring a full bench rig.