• R-134a Oil Injector & 1/2” Acme quick coupler
• Use these syringe-type injectors to add oil to a fully pressurized A/C system.
• Can also be used for fluorescent dyes.

Just fill the barrel with the amount of oil needed (measurements are marked on the barrel body). Connect the injector fitting to the low side access port on the vehicle and press the plunger to deliver the oil charge.