Upgrade Your AC Service with Precision and Convenience! Our 90-degree adapters with valves are engineered for professional-grade performance and effortless operation. Designed to seamlessly connect with your air conditioning system, these adapters ensure a secure, leak-free connection every time, making refrigerant charging and servicing faster and more reliable. Key Features & Specifications: Removable Valves: The integrated valves are easily removable for maintenance or replacement, offering long-term usability and flexibility. Universal Compatibility: High Side (Red) and Low Side (Blue) couplers are available in both 7/16-20UNF and 1/4" SAE thread sizes, ensuring a fit for a wide range of automotive and residential AC units. Durable Construction: Made from high-quality copper for excellent corrosion resistance and thermal conductivity, combined with robust plastic components for a lightweight yet sturdy build. Clear Color-Coding: Instantly identify the high-pressure (Red, 16mm) and low-pressure (Blue, 13mm) ports with the standardized color scheme, preventing errors during connection. Integrated Gas Valves & Protective Caps: Each coupler features an internal valve to control refrigerant flow and comes with a plastic protective cap to keep threads clean and prevent damage when not in use. Effortless Installation & Use: Simply screw the corresponding coupler onto the service port—the 90-degree design provides superior accessibility in tight engine compartments. The secure threaded connection guarantees a great seal, allowing for safe and efficient system diagnostics, evacuation, and recharging. Complete Package Includes: 1 x Blue Low Side Quick Coupler (1/4" SAE, 13mm) 1 x Red High Side Quick Coupler (1/4" SAE, 16mm) 2 x 13mm Blue Protective Caps 2 x 16mm Red Protective Caps Quality Assurance: We stand behind the durability and performance of our products.