The Errecom 11Z0143 LIQUI LIMP A/C CIRCUIT is a specialized 1-liter detergent designed for the thorough internal cleaning of air conditioning systems. Its advanced formula effectively removes stubborn residues of old oils, accumulated sludge, and other solid particles that can result from compressor breakdown or general wear. This high-performance cleaning solution is engineered for broad compatibility, working seamlessly with all common refrigerants, including CFC, HCFC, HFC, and HFO types. Furthermore, it is compatible with all major lubricant types, such as PAG, POE, Mineral, and Alkylbenzene oils. The product is non-flammable and non-toxic, ensuring safe handling and application. It is also compatible with all A/C system components, making it an ideal choice for maintaining optimal system performance and extending the lifespan of air conditioning units in various machinery.