Aupoko AC Oil Injector Kit, R134A Oil Injector with R1234YF Low Side Quick Coupler, HVAC Dye Oil Injector with 1/4" SAE Connector, for R134A R22 R12 R1234YF Refrigerant System

Specifications: Tank Capacity: 1/4oz/7.5ml (Min)-2oz/60ml (Max). Connections: 1/4" SAE Female. R134A Coupler Adapter: Low Pressure coupler (inner diameter 13mm) to 1/4" SAE Male.R1234yf Coupler Adapter: Low Side Quick Coupler (inner diameter 14mm) to 1/4" SAE Male.Rated working pressure: 3000 psi burst / 600 psi Max. working pressure. Instructions: Oil cylinder is filled with 2 ounces of refrigeration oil, check valve screwed onto cartridge and tightened. The inner and outer cylinders are tightened clockwise, and then a little 1/4 SAE threaded inner core is used to discharge a little air inside 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. Package Included: ?1Pc x 2 OZ Hand Turn Screw-in Type Oil Injector. ?1Pc x R134A Low Side Quick Coupler 13mm.?1Pc x R1234yf Low Side Quick Coupler 14mm.