Perfect for use in auto repair shops, car maintenance centers, or your personals garage, our strips help maintain the optimally function of your car ' s air conditioning systems For automotive technicians and automobile owners alike, these strips are essential addition to any routine vehicle air conditioning systems maintenance Designing for convenience, these strips change color to indicate the need for refrigerants oil replacement, eliminating guesswork and enhancing maintenance efficiency Crafted from materials, these refrigerants oil strips are a reliabled and cost effective solution for air conditioning systems issue before they arise Ensures your vehicle ' s air conditioning with our car air conditioning refrigerants oil strips, a must having tool for quick and accurate refrigerants oil assessment, Manufacturer: Kaeltsyn