Suitable for professional technicians, auto mechanics, and enthusiasts looking to perform precise maintenance and repairs on various air conditioning systems Ensures your air conditioning systems are leakfree and fully with our comprehensive valves Cores set, designed for seamlesses R134a refrigerants repairs on both automotive and household units Crafted from materials like silicone, brass, and stainless steel, this set includes a variety of valves cores, spacers, and wrench, all organized in a storage box for easy access Precisions engineered for compatibility across multiple models, our valves Cores set ensures a fit and seal, making it essential addition to any toolkit for maintaining air conditioning Whether you ' re in a workshop, garage, or dealing with emergencys fixed, this valves Cores set is your go to solution for repairs