AC Oil Dye Injector Backflow Prevent Kit, with R134A R1234YF Low Side Quick Coupler, R410A Mini Split Adapter for R134A R410A R1234YF Refrigerant System( 1/4" SAE Connector,2 OZ Hand Turn Screw) Item Description ?Versatile Application?: This professional automotive AC oil dye injector kit accommodates both R134A r410 and R1234YF systems, boasting a capacity of 1/4 oz/7.5ml to 2oz/60ml. It's an efficient tool for injecting oil and dye into the compressor via the low-pressure suction side. ?Extensive Compatibility?: This oil dye injector kit With extra couplers for R134A low side quick coupler with 1/4?? SAE male x 13mm female, Blue Low side R1234yf coupler with 14 mm female x 1/4"SAE male, R410a mini split adapter with 5/16?? SAE Female to 1/4?? SAE Male.The AC Oil Injector can compatible with all types of refrigerants. The HVAC oil injector tool is very suitable for office air conditioning, home air conditioning, and car air conditioning systems. ?Ease of Use?: Designed for ease, simply connect the AC Oil Injector to the A/C system's low side and twist the handle to dispense the desired amount of oil or dye. The AC oil injector tool r134a is straightforward enough for beginners to use independently. ?Durable and Reliable?: AC oil dye injector kit Crafted with a robust aluminum alloy hand-turned body and fortified with heavy-duty brass couplers on a thickened hose, this tool guarantees durability and safety for secure connections. p span style="font-size: 1px;" b ?Worry-Free Assurance? /b /span br /p : If any question when you use our AC oil dye injector tool, please feel free to contact us by email!We will solve it for you in the first time! ? See more product details *Before adding any additive to the AC oil injector, the shut off valve must be off. Uscrew the end off the injector. *Connect other end of the injector to the low side service port on the vehicle. *Open the valve on the injector. With refrigerant attached, fill to proper pressure. *When finished using the injector toool, clean well by using brake cleaner. *Material: aluminum alloy cylinder, rubber tube, pure copper connector Revolutionize your automotive air conditioning maintenance with our ac oil injector tool Kit. Crafted to precision, this professional-grade tool is your go-to solution for injecting oil and dye seamlessly into your AC compressor, ensuring efficient diagnostics and repairs. This AC Oil Injector Kit with R134A , R1234YF and R410 low side port coupler, suitable for office air conditioning, home air conditioning, and car air conditioning systems. When injecting dye into a pressurized system, always wear safety glasses and glove! Never breathe refrigerant vapor! Payment We accept payment only through the Payment system. Shipping Most products are usually shipped within 1-2 business days from the date of being ordered. We do ship worldwide via the International Shipping Program. For an international shipment quote, please add add item to cart and attempt checkout. will supply the international shipping price. Return We do not accept returns except in certain, unlikely circumstances.