Tracer Spectronics Corp TP97700108 8 oz. Universal Dye Cartridge Disposable dye cartridge which treats up to 32 compact or 16 standard vehicle air-conditioning systems The cartridges are pre-filled with solvent-free air-conditioning dye, certified to meet SAE J2297 and calibrated for exact dosing Also fits all caulking gun and pump type injectors One easy connection