The Aluminum 4-Way R134A Auto AC Manifold Gauge Set with Sight Glass 80MM (SKU: 9G4108) is a professional automotive air conditioning service tool designed for refrigerant charging, pressure testing, vacuum checking, and AC system maintenance. This R134A manifold gauge set is ideal for technicians working on vehicle air conditioning systems.

Manufactured with a strong and lightweight aluminum manifold body, this 4-way refrigerant manifold gauge provides durability, easy handling, and reliable performance during regular workshop and field applications. The built-in 80mm sight glass allows clear observation of refrigerant flow, helping technicians monitor charging conditions accurately.

This R134A charging manifold comes complete with three 60-inch color-coded 1/4″ SAE hoses and two couplers for quick and secure connections. The color-coded hoses help identify different service lines, making AC diagnosis and refrigerant handling easier.

The gauge set features a high-pressure range of 0–500 PSI (0–35 kg/cm²), low-pressure range of 0–350 PSI (-1–25 kg/cm²), and vacuum measurement up to 76 in/Hg, providing accurate readings for automotive AC systems.

Designed for professional car AC repair and refrigeration servicing, this aluminum manifold gauge offers excellent control, precise measurement, and dependable operation for R134A refrigerant applications.

Features

• Professional R134A Auto AC manifold gauge set
• Durable aluminum construction for long-lasting use
• 4-way design for charging, testing, vacuum, and refrigerant control
• 80mm sight glass for monitoring refrigerant flow
• Includes three 60″ 1/4″ SAE color-coded hoses
• Comes with two AC service couplers
• Compatible with R134A automotive air conditioning systems
• High-pressure gauge range: 0–500 PSI / 0–35 kg/cm²
• Low-pressure gauge range: 0–350 PSI / -1–25 kg/cm²
• Vacuum measurement up to 76 in/Hg
• Clear and easy-to-read pressure display
• Suitable for professional workshop use

Applications

• Car air conditioning repair and maintenance
• Automotive AC refrigerant charging
• Vehicle cooling system inspection
• R134A refrigerant pressure testing
• AC leak checking and troubleshooting
• Refrigeration system servicing
• HVAC and automotive workshop applications
• AC installation and maintenance work

Usage

1. Connect the manifold hoses to the vehicle AC service ports.
2. Attach the low-pressure and high-pressure couplers to the correct AC connections.
3. Open the manifold valves to check refrigerant pressure readings.
4. Use the gauge readings to diagnose AC system performance.
5. Perform vacuum operations before refrigerant charging if required.
6. Monitor refrigerant movement through the sight glass during charging.
7. Close valves and remove hoses safely after completing the service.

Product Type: Automotive AC Refrigerant Service Tool
Suitable For: R134A Vehicle Air Conditioning Systems