Aupoko R134A AC Oil Dye Injector Syringe — 1/2" Male & Female, 2 oz Aluminum Inline Tool for Oil and UV Dye

The Aupoko R134A AC Oil Dye Injector is a compact all‑metal syringe tool that lets technicians inject oil or UV dye into R134a air‑conditioning systems through 1/2" male and 1/2" female service ports.

This professional-grade oil and dye injector is built from rugged aluminum alloy and incorporates a 2 oz canister for controlled additions to automotive and light‑duty HVAC R134a circuits. It installs inline on standard 1/2" service fittings and works with vacuum or system pressure to transfer fluid reliably. The tool is intended for use during service and diagnostics — for example adding lubricant after evacuation or introducing UV tracer for leak detection.

How does this injector attach to my R134a service ports?

The injector connects directly to common 1/2" male and 1/2" female AC service fittings so it fits most R134a systems without adapters. Its all‑metal couplings provide a secure seal and tolerate repeated professional use.

• Direct 1/2" male and 1/2" female compatibility for R134a systems
• Threaded aluminum fittings resist wear and maintain seal integrity
• Quick inline installation for service bay or roadside repairs

What fluids can I safely inject with this tool?

This syringe is designed for lubricating oils used in R134a refrigerant circuits and for introducing UV dye tracers for leak location. It is not a pressurized refrigerant reservoir; follow fluid manufacturers' compatibility and volume recommendations.

• Works with PAG and ester compressor oils formulated for R134a
• Suitable for UV dye concentrates used in leak detection
• 2 oz capacity supports typical oil additions without overfilling

How do I operate the injector during service?

You can add oil either by allowing a vacuum to draw fluid into the system after evacuation or by using system pressure/recharge to push fluid in. The unit’s straightforward construction makes it quick to cycle and easy to clean between uses.

• Add oil after evacuation by opening the injector and letting vacuum pull fluid in
• Alternatively, use refrigerant pressure during recharge to push fluid into the circuit
• Recommended fill: approximately 2 ounces for an R134a service addition unless manufacturer specifies otherwise

What materials and durability features does it offer?

The tool’s aluminum alloy body and metal canister are built for shop environments and frequent handling. Metal construction minimizes cracking, deformation, and chemical attack compared with plastic alternatives.

• Sturdy aluminum alloy housing for long service life
• Rugged all‑metal 2 oz canister resists solvent and oil exposure
• Designed for repeated professional use and field diagnostics

Who is this for: The Aupoko R134A AC Oil Dye Injector is aimed at HVAC and automotive technicians, fleet maintenance shops, and DIYers comfortable with refrigerant service procedures who need a durable, easy‑to‑use device for adding lubricant or UV dye to R134a systems. It suits anyone who requires precise small‑volume additions and a reliable metal injector that fits standard 1/2" service connections. Note: always follow vehicle and refrigerant supplier instructions and local regulations when servicing air‑conditioning systems.