CALPOSE AC Manifold Gauge Set for R134a/R410a/R12/R22/R502 — Brass Conversion Head, 600 PSI Hoses

CALPOSE AC Manifold Gauge Set is a professional HVAC refrigerant pressure and charging kit compatible with R134a, R410a, R12, R22 and R502 systems.

This manifold gauge set combines durable materials, accurate dials and heavy-duty hoses to help technicians and advanced DIYers measure system pressures, add or recover refrigerant, and troubleshoot air conditioning and refrigeration equipment. Built with a zinc-alloy body, brass conversion head and impact-resistant gauges, the kit targets both residential and commercial applications where reliable readings and robust connections matter.

How accurate and durable are the gauges?

The CALPOSE gauges feature an upgraded impact-resistant dial face and a calibration screw to maintain reading precision. The manufacturer rates the calibration tolerance at approximately 1.6%, helping you trust readings during charging or pressure testing. The visible sight window also lets you inspect refrigerant condition without disassembly.

• Impact-resistant dial reduces damage on job sites
• Calibration screw for fine-tuning accuracy
• Visible window to monitor refrigerant flow
• Accuracy spec around 1.6% for consistent results

What makes the hose and fittings reliable for field use?

Each hose uses a four-layer thickened construction designed to withstand working pressures up to 600 psi and an extreme burst rating. Fittings include leak-proof rubber rings and robust connections to minimize refrigerant loss during charging or evacuation. Color-coded hoses (red, blue, yellow) speed up setup and reduce cross-connection risk.

• Four-layer reinforced hose construction for durability
• Working pressure up to 600 psi, burst-tested to 3000 psi
• Leak-proof rubber rings on fittings for secure seals
• Red, blue and yellow hoses for quick identification

Which systems and jobs is this manifold set suitable for?

This set supports a wide range of refrigerants—R134a, R410a, R12, R22 and R502—making it appropriate for automotive, residential HVAC and many commercial refrigeration systems. Use it for pressure checks, vacuuming, charging, and routine maintenance across small and large installations. The solid brass conversion head and zinc-alloy body help the unit hold up under repeated professional use.

• Compatible with common refrigerants: R134a, R410a, R12, R22, R502
• Works on car air conditioners, home HVAC and commercial refrigeration
• Solid brass and zinc-alloy construction for longevity
• Suitable for pressure testing, charging and troubleshooting

Who is this for? Technicians, HVAC service companies and experienced DIYers who need a multi-refrigerant capable manifold gauge that balances portability with rugged components will find this kit useful. It’s designed for users who require accurate pressure readings, secure hose connections and versatile compatibility across vehicles, homes and commercial systems. If you perform routine maintenance, refrigerant charging or diagnostic testing, this CALPOSE kit is built to hold up to frequent field use while delivering dependable measurements.