- Compatibility: This air conditioner refrigerant gauge is designed for universal use across all car A/C systems, compatible with R410A, R134A, and R22 refrigerants. - Durable Construction: Crafted from high-quality brass, the refrigerant gauge connector ensures exceptional durability and reliable performance, providing peace of mind during use. - Essential Tool: Ideal for refrigerant testing, charging, and evacuation, this tool set is perfect for automotive technicians and DIY enthusiasts looking to maintain their vehicle's A/C system effectively. - Precision Engineering: The gauge features a specialized spring pressure indicator and a precise dial, allowing for accurate readings and ensuring you achieve optimal A/C performance. Practical Applications: 1. Routine Maintenance: Use this gauge to regularly check refrigerant levels and ensure your vehicle’s A/C system operates efficiently. 2. Leak Detection: Identify potential leaks in the A/C system by monitoring pressure readings, helping you avoid costly repairs. 3. System Charging: Easily charge your vehicle's A/C system with the correct amount of refrigerant, ensuring maximum cooling performance during hot weather. This refrigerant gauge is an essential addition to your automotive toolkit, combining functionality, compatibility, and durability to meet all your air conditioning service needs.