Ensures your air conditioning systems are leak-free and fully operational with our comprehensive valve cores set, designed for seamless R134a refrigerant repairs on both automotive and household units. Crafted from materials like silicone, brass, and stainless steel, this air conditioner repair tool set includes a variety of valve cores, spacers, and wrench, all organized in a convenient storage box for easy access. Suitable for professional air conditioner technicians, auto mechanics, and enthusiasts looking to perform precise maintenance and repairs on various air conditioning systems. Whether you're in a workshop, garage, or dealing with emergency fixes, this air conditioner valve cores set is your go-to solution for air conditioner repairs. Precision-engineered for compatibility across multiple models, our valve cores set ensures a perfect fit and seal, making it an essential addition to any toolkit for maintaining air conditioning performance. Note: Installation guide not included. Please check as much as possible to make sure the item is what you need. Tips: The product may be updated constantly due to different batches. The actual product may have slight differences or color variations, which do not affect use. Color: As shown Material: Metal Package Contents: 1 x Air Conditioning Valve Core Kit (19PCS) Only the above package content is included; other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The measurement allowed error is +/- 1-3 cm.