Tracerline TP9792-BX Ez-shot R-1234yf/pag UV A/C Dye Injection Kit. Tracerline TP9793-BX EZ-Shot R-134a/PAG A/C Dye Injection kit with TP9. Tracerline TPOPUV Optimax UV Leak Detection Flashlight. Uniquely blended with special additives for hybrid A/C systems.