LIYYOO Refrigerant Charging Hose Set for R134A R12 R22 — 3-Pack 60in Red/Yellow/Blue, 1/4" SAE Ball Valves

LIYYOO refrigerant charging hose set is a 60-inch, 1/4" thread, three-color hose kit with ball valves designed for charging and diagnosing R134A, R12, R22, R502 and R404 air conditioning systems.

This professional-grade hose set gives HVAC technicians and vehicle owners a reliable, easy-to-use way to connect manifold gauges to refrigeration and air conditioning systems. Each hose is color-coded (red, yellow, blue) for high/low/service lines, features a compact ball valve and female 1/4" SAE flare fittings with a valve core depressor and 45° fitting for easier access. Built with a 600 PSI working pressure and a 3000 PSI burst rating, the hoses are suited to common refrigerants—but not recommended for R410A systems, which require higher-pressure hoses.

How does this hose set help with charging and diagnostics?

The LIYYOO hoses let you hook a manifold gauge to system service ports, control refrigerant flow with the ball valves, and depress the valve core for direct access. Their 45° fitting eases connection in tight spaces and the color coding reduces hookup mistakes. Durable seals and flare fittings help prevent leaks while you work.

• 60" length provides reach to engine bays and rooftop units
• 1/4" female SAE flare with valve core depressor for direct service
• Ball valve control on each hose for precise service and isolation
• Color coding (red/yellow/blue) for clear identification of lines

What refrigerants and pressure ratings are supported?

These hoses are specified for R134A, R12, R22, R502 and R404 refrigerants and accept common service tasks on those systems. Each hose is rated to 600 PSI working pressure with a 3000 PSI burst pressure, making them suitable for standard automotive and light HVAC applications. Do not use these hoses with R410A systems because R410A requires higher working pressure hoses.

• Compatible refrigerants: R134A, R12, R22, R502, R404
• Working pressure: 600 PSI; burst pressure: 3000 PSI
• Not for R410A use—use hoses rated for 800 PSI working pressure for R410A
• Standard 1/4" thread fits most manifold gauges and service ports

How easy is installation and operation for a technician?

Installation is straightforward: attach the 1/4" flare fittings to the manifold and service ports, then open or close the ball valves to control flow. The compact ball valves and 45° bend let you connect in confined or awkward spaces. Good sealing and quality fittings reduce the chance of refrigerant loss during transfer or diagnostics.

• Quick-connect 1/4" female flare fittings with secure tightening
• Built-in valve core depressor simplifies servicing Schrader-type ports
• 45° angled end improves access to recessed service valves
• Ball valves allow isolation of hoses for safe charging and recovery

What maintenance and safety tips should I follow?

Inspect hoses for cracks, worn fittings, and damaged seals before each use; replace any hose that shows wear. Clean fittings and cap service ports to avoid contamination. Always match hose pressure ratings to the refrigerant in use and follow local regulations for refrigerant handling and disposal.

• Check for visible damage and leak-tight fittings before use
• Do not use this set with R410A or systems exceeding 600 PSI working pressure
• Store coiled in a dry place away from oils or solvents that may degrade material
• Follow safe refrigerant handling procedures and local laws

Who is this for: The LIYYOO 60" refrigerant charging hose set is made for HVAC technicians, mobile service professionals and experienced DIY vehicle owners who work on R134A, R12, R22, R502 and R404 systems. It’s a practical, cost-effective addition to a manifold gauge kit when you need reach, valve control and standard 1/4" SAE compatibility—just ensure you select higher-pressure hoses for R410A work.