[FOR R1234YF/R134A Systems] -- The Professional Grade Oil Dye Injector Kit is compatible with both R134A and R1234YF A/C systems and is designed to inject oil into the A/C system. Separate R1234YF and QC12 snap-on couplings are included in this kit. There is no need to buy multiple tools for different systems. [EASY TO INSTALL] -- This 2oz A/C has three parts: cylinder, check valve and R1234YF quick connector. Tighten the check valve on the spool and tighten. Tighten the inner and outer cylinders clockwise, and then use a little 1/4 SAE threaded core to expel the gas in the blue tube. Connect the low-pressure port of the refrigeration system that needs to be refueled, and add the required amount of cooling oil to the inner and outer cylinders. [WIDE CAPACITY RANGE] -- 1/4oz/7.5ml - 2oz/60ml -- The scale is laser engraved, clearly marked and easy to read. Oil Checkers will inform the A/C system of the existing oil level, and the measuring cups will measure the volume of the injected oil. [WIDE APPLICATION] -- This is a professional maintenance and replacement tool. It will be perfect for home, office AC and car AC systems. It is compatible with fluorescent dyes for leak monitoring and all types of oil (POE or mineral oil). It is also compatible with all types of refrigerants. Made of aluminum alloy with a 1/4-inch female threaded connector, it makes the tool compatible with most AC systems. [WHAT YOU GET] -- 1 x professional grade AC oil and paint injector with 2oz capacity, 1 x R1234YF low side quick coupler, 1 x QC12 low side quick coupler

Product parameters:

Capacity: 1 / 4oz / 7.5ml (minimum) -2oz / 60ml (maximum)

Thread size: 1/4 '' SAE

Rated working pressure: burst 3000 psi / maximum 600 psi working pressure.

Material: aluminum alloy cylinder, rubber tube, pure copper joint

Product Feature-

Standard size, it can be directly replaced.

Advanced manufacturing technology, high reliability and high performance.

Install Instruction-

1.Rotate the inside cylinder clockwise to the top.

2.Unscrew the cover on the top of the smaller cylinder.

3.Pour the liquid(Refrigeration Oil / Fluorescent Dye / Leak Detection Dye) into the cylinder.

4.Tighten the cover.

5.If the cylinder is not ful filled with oil,then discharge the gas is needed.(Rotate the bigger cylinder counterclockwise until the oil flows out at the end of the hose.)

6.Turn on the car conditioner to the maximum volume.

7.Attach the low pressure quick connector to the cylinder.

8.Locate the low pressure filler port of the car conditioner and connect the other end of the quick connector.

9.Rotate the cylinder counterclockwise to inject the oil into the car conditioning system.

Package Included

1 x Oil and Dye Injector

1 x R1234YF Snap Coupler

1 x QC12 Snap Coupler