VIVOHOME Manifold Gauge Set for R134a R1234yf R454B R410A R32 — 2 Gauges, 3 Hoses, A2L‑Ready

The VIVOHOME HVAC Manifold Gauge Set is a complete A2L-compatible diagnostic and charging kit for modern automotive and HVAC refrigerants, including R134a, R1234yf, R410A, R454B and R32.

This compact, ready-to-use kit combines a three-way aluminum manifold, two high-accuracy pressure gauges, reinforced hoses and multiple adapters so technicians and DIYers can measure, evacuate and charge a wide range of vehicle and home-system refrigerants. Designed for accuracy and durability, the set balances portability with service-grade features such as a pressure-unloading valve, dry dials for cold-weather stability, and high-strength fittings for reliable sealing on A2L and other refrigerants.

How accurate and readable are the gauges for different refrigerants?

The two included gauges show five refrigerant scales on each dial for quick cross-reference across common refrigerants. Each gauge offers ±1.6% accuracy and a dry-dial design that reduces frost and condensation issues during low-temperature tests. A calibration screw allows you to fine-tune readings for consistent performance over repeated jobs.

• High/low side dual gauges with five refrigerant scales
• ±1.6% accuracy for reliable diagnostics
• Dry dial face reduces condensation error in cold conditions
• Accessible calibration screw for long-term consistency

What safety features protect me and the system during service?

Safety is addressed through the 3-way manifold’s unloading valve that helps relieve trapped pressure before disconnecting lines, minimizing accidental discharge. Reinforced brass fittings and updated gauge guards improve sealing and physical protection. The hoses are rated for heavy-duty use and come with secure butterfly valves to prevent leaks during connection and disconnection.

• Aluminum manifold with unloading valve for controlled pressure relief
• Reinforced brass fittings and protective gauge covers
• Hoses rated 800 psi working and 4000 psi burst for durability
• Butterfly valves on hoses for fast, leak-resistant shutoff

Which accessories are included and how do they expand usability?

The kit arrives ready to work: three color-coded 5 ft hoses, couplers and self-sealing can taps for R134a and R1234yf, plus a set of common adapters to bridge different service ports. These accessories let you connect to a variety of automotive and HVAC fittings without hunting for extras. A sturdy hanging hook and a molded carrying case keep components organized on the job or in the trunk.

• Three 5 ft color-coded, four-layer reinforced PVC hoses
• R134a and R1234yf coupler pairs and self-sealing can taps
• Multiple 1/4" and 1/2" adapter fittings for common ports
• Hanging hook and hard carrying case for storage and transport

Can I use this set with both automotive and home HVAC systems?

Yes—the manifold and accessories are designed to handle a broad selection of refrigerants used in automotive A/C and small HVAC systems, including A2L-class refrigerants like R1234yf and R454B. While the kit supports both service types, always follow refrigerant-specific safety protocols and local regulations when working with A2L and other low-GWP blends. For larger commercial systems you may need specialized pumps and recovery equipment beyond this kit.

• Compatible with automotive and small HVAC systems
• Supports A1 and A2L refrigerants including R32 and R454B
• Follow local refrigerant-handling rules and safety practices
• Supplement with recovery/vacuum gear for large systems

Who is this for: The VIVOHOME HVAC Manifold Gauge Set is intended for professional technicians, service shops and experienced DIY enthusiasts who work on modern vehicle air conditioning and residential or light commercial HVAC systems. It’s best suited for users who need cross-referenced refrigerant scales, A2L compatibility and a portable, all-in-one kit that covers most common connections without sacrificing accuracy or safety features.