Oil and Dye Injector Kit for Refrigerant Systems Benefits - 30 ml push-in filter with oil and dye injector; a single operation can help restore a compressor affected by low oil without relying on other systems. Fluorescent dye enables leak monitoring. - Compatible with all oil types (POE or mineral oil) and all refrigerants. Structure and compatibility - 13 mm low pressure quick coupler for easy snap-in to a 13 mm female manifold connector. - Includes a 1/4 inch female SAE connector to mate with the 1/4 inch SAE male system ports (lower side preferred). Use an adapter if port sizes differ. Applications - Suitable for air conditioning, HVAC, home office AC, service industry, automotive industry, car A/C, and compressor issues caused by low oil. Materials and performance - Made from ABS, copper, and rubber for durability, wear resistance, and heat resistance to extend service life. - Flexible hose max working pressure: 355-425 psi (24-29 bar); hose working pressure: up to 285 psi (20 bar).