CALPOSE AC Manifold Gauge Set 3-Way for R134a/R410a — Brass Head, Reinforced Hoses

CALPOSE 3-Way AC Manifold Gauge Set is a professional HVAC charging and diagnostic kit built for R134a/R410a and other common refrigerants, offering durable metal components, three-color heavy-duty hoses, and a full set of adapters for service work.

This three-valve manifold pack is designed to help technicians and DIYers read pressures, add or recover refrigerant, and inspect system health across automotive and residential air conditioning systems. The kit combines a zinc-alloy manifold body with a brass conversion head, calibrated gauges, and reinforced hoses rated for high working pressures to deliver reliable field performance.

How accurate and durable are the gauges for field use?

The gauges include a calibration screw and a clear viewing window so you can verify readings and adjust accuracy as needed. The build uses a zinc-alloy manifold and solid brass conversion head to resist wear and corrosion during repeated service cycles.

• Calibration screw for fine-tuning gauge accuracy (approximately 1.6% reported)
• Visual window for coolant condition checks
• Zinc-alloy body and brass head for extended durability
• Designed for repeated professional use and on-site repairs

Which refrigerants and systems does this kit support?

The CALPOSE manifold is compatible with a wide range of refrigerants commonly used in vehicles and home HVAC units. It supports R134a and R410a, and can also be used with R12, R22 and R502 when the correct adapters and service practices are followed.

• Works with R134a and R410a as primary refrigerants
• Backward-compatible use with R12, R22, and R502 with proper adapters
• Suitable for both automotive and residential AC service tasks
• Includes quick couplers and can taps for different service scenarios

What connectors and accessories are included in the kit?

The package contains a full complement of service fittings so you can begin charging or testing without sourcing additional parts. Color-coded hoses, quick couplers, can taps, an Acme adapter, and spare ejector pins cover most routine service needs.

• Three color-coded, four-layer hoses with leak-proof rubber seals
• Two adjustable 1/4" quick couplers for fast connections
• 1/4" to 5/16" Acme adapter plus both self-sealing and puncture can taps
• Spare hose ejector pins included for maintenance

How safe and robust are the hoses under pressure?

The kit's hoses employ a multilayer construction rated to handle typical service pressures and are tested with high burst strength for added safety margin. Brass fittings and rubber sealing rings help prevent leaks and ensure consistent service performance.

• Four-layer reinforced hose design for pressure durability
• Working pressure rated up to 600 psi; burst up to approximately 3000 psi
• Leak-proof rubber rings on fittings to reduce refrigerant loss
• Color coding improves speed and reduces hookup errors on the job

Who is this for: The CALPOSE 3-Way AC Manifold Gauge Set is aimed at HVAC technicians, mobile refrigerant service providers, and informed DIYers who perform maintenance or troubleshooting on car and household air conditioning systems. It offers a complete starter toolset for pressure diagnosis, refrigerant charging, and routine service tasks, combining practical accessories with a robust, service-ready design.