Features Protects against injury and coolant loss--- The sleeve design of this coupler provides effective protection against potential injuries and coolant leaks, ensuring a safe working environment. Compatible with R134 service--- Designed to fit perfectly with R134 connectors, this coupler ensures a secure and reliable connection for easy diagnostics, charging, and evacuation in automotive air conditioning systems. Quick and easy connection/disconnection--- With its high flow design, this coupler allows for quick and effortless connection and disconnection, saving you time and effort during maintenance or repair tasks. Reliable and safe at working pressure--- This coupler is built to withstand high pressures and maintain a reliable seal, ensuring safe and efficient valve access even under challenging working conditions. Convenient side mounting for A/C gauge set--- Featuring a side mount design specifically for A/C gauge sets (R-134A), this coupler provides easy access and compatibility for accurate readings and diagnostics. Description: This set of R134A air conditioning (A/C) quick couplers allow you to connect multiple hoses in the automotive industry / car R134A air conditioning system during diagnosis, charging, or evacuation. High and low connectors are included. Its safe design can effectively prevent injury and loss of coolant. Features: Sleeve can protect against injury and loss of coolant.Coupling interface fits with service R134, 1/4" flare male.Quick and easy to connect/disconnect with high flow.Reliable and safe for valve access systems even at working pressure.Side mounting for A/C gauge set(R-134A) type. Specification: Connector: 90° Material: Brass Compatibility: R134 Low Side Quick Coupler: Blue High Side Quick Coupler: Red Application: Car Add Fluorine Manifold Hose Connections on Both Adapters: 1/4" Inner Diameter(Blue): Approx. 14mm / 0.55inch Inner Diameter(Red): Approx. 17mm / 0.67inch Package Weight: Approx. 366g Package Included: 1 x Blue Low Side Quick Coupler(With Cap) 1 x Red High Side Quick Coupler(With Cap) Package List