Tracer Products has introduced the TP-9844 EZ-Ject R-1234yf A/C Dye Injection Kit, which makes adding fluorescent leak detection dye to new R-1234yf A/C systems quick and easy. At the heart of the kit is the EZ-Ject A/C dye injector assembly. It easily overcomes system pressure so the dye can be injected whether the A/C system is off or still running. A simple turn of the handle injects the exact amount of dye into the system. The kit also contains a 0.5 oz (14.8 ml) EZ-Ject R-1234yf/PAG multi-dose A/C dye cartridge that services up to 14 vehicles. In addition, an R-1234yf hose/coupler with purge fitting is included.