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Front view of blue carrying case with air conditioning manifold gauges, three colored hoses and brass fittings insideAngled view of manifold gauge set in open blue case showing hoses, gauges, knobs and toolsClose-up of manifold gauges showing two dial faces, blue 'LOW' and red 'HIGH' knobs and brass portsManifold gauge set and accessories laid out showing hoses, manifold, quick couplers and toolsDetailed view of the dual gauges and red/blue control knobs on the manifold with legible 'LOW' and 'HIGH' labelsRed and blue quick-coupler refrigerant fittings close-up, showing metal bodies and brass connectorsClose-up of red-handled valve core tool and chrome can tap/service valve accessory

Professional Air-Conditioning Manifold Gauge Set for R-134 Systems

Complete R-134 AC service kit with dual-gauge manifold, quick-release couplers, and precision hoses for efficient system diagnostics and filling.

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Description

Professional Air-Conditioning Manifold Gauge Set for R-134 Systems

Brief Overview

This is a professional-grade air-conditioning service and diagnostic kit designed for rapid R-134 system testing, evacuation, and refrigerant charging on motor vehicles. The dual-gauge manifold with color-coded control valves provides precise pressure monitoring on both low and high sides of the system, while quick-release couplers ensure safe, leak-free connections and refrigerant protection. For shops performing regular AC maintenance or diagnostics, this kit pairs effectively with comprehensive cooling system pressure testing equipment to cover both pressurized and vacuum-side diagnostics.

Key Features

  • Dual-Scale Gauge Manifold – Two large-face circular gauges with multi-scale markings for pressure and temperature readings across R-134 and compatible refrigerants
  • Color-Coded Control Valves – Blue LOW-side and red HIGH-side knobs with clear OPEN/CLOSED directional markings for intuitive operation
  • Quick-Release Couplers – Blue and red safety couplers with brass swivel fittings; internal valve components prevent refrigerant loss during disconnect
  • Three Service Hoses – Red (high-pressure), yellow (vapor/liquid recovery), and blue (low-pressure) hoses with brass fittings; each approximately 1.5 meters with color-coded identification
  • Built-In Sight Glass – Integrated into the manifold body to monitor refrigerant condition, flow state, and system saturation in real time
  • Brass Manifold Construction – Plated brass service ports and nipples ensure durability and corrosion resistance under repeated use
  • Precision Valve Core Tool – Red-handled dual-ended removal/installation tool included for quick access to system ports
  • Service Tap Adapter – Chrome-plated can tap with T-handle and swivel assembly for safe connection to R-134 recovery cylinders
  • Protective Carrying Case – Molded blue plastic case with integrated compartments for all components; reinforced handle and latches for jobsite transport

Business Advantages for Resellers

  • High Turnover Category – AC service is a recurring revenue driver in automotive shops; this kit is essential equipment, not optional
  • Bundling Opportunity – Position alongside vacuum and pressure testing equipment for complete cooling system diagnostics
  • Professional Presentation – The organized carrying case and complete accessory set convey quality and readiness to end customers
  • Durable Multi-Use Tool – Brass and plated components withstand hundreds of service cycles; not a consumable, but a long-term shop asset
  • Competitive Retail Margin – Positioned as a premium diagnostic kit, this justifies healthy resale pricing while remaining cost-competitive against fragmented accessory purchases

Technical Specifications

Specification Details
Refrigerant Compatibility R-134a (most motor vehicle AC systems)
Gauge Type Dual circular pressure gauges with multi-scale faces
Pressure Range Low-side: 0–50 PSI / High-side: 0–350 PSI (typical scales)
Temperature Scales Multi-refrigerant temperature reference markings
Hose Length Approximately 1.5 meters each (red, yellow, blue)
Hose Fittings Brass swivel connections on all hoses
Coupler Type Quick-release safety couplers (blue and red) with internal isolation valves
Control Valves Ball-type isolation valves (LOW/HIGH side); color-coded actuators
Manifold Material Plated brass body with brass service ports
Case Material Impact-resistant molded blue plastic with foam insert compartments
Included Accessories Valve core tool, service tap adapter, carrying case
Typical Weight 3–4 kg (case with all components)

Why This Kit Matters

AC diagnostics require reliable pressure measurement and safe refrigerant handling. The dual-gauge manifold isolates low and high-side circuits, preventing over-pressurization and cross-contamination. The quick-release couplers meet EPA and SAE standards for environmental protection and technician safety. The built-in sight glass eliminates guesswork—technicians instantly see whether the system is properly charged, overcharged, or under-charged, reducing callback rates and improving first-time fix success.

For shops investing in professional diagnostics, this manifold set is the foundation. It's used on nearly every AC service call and becomes a centerpiece of the shop's cooling system capabilities.

Call to Value

Stock this kit as a core diagnostic offering. It combines precision measurement, safety compliance, and professional presentation—three factors that drive both customer confidence and repeat business. Order in bulk to support your shop network's AC service expansion, and position it as the essential first step in any cooling system diagnosis.