English: Description: This R134A air conditioning (A/C) quick coupler set allows you to connect multiple hoses in automotive/car R134A air conditioning system during diagnosis, charging, or evacuation. Top and bottom connectors are included. Safe design can effectively prevent injury and refrigerant loss. Features: The sleeve can protect against injury and refrigerant loss. The coupling interface fits for R134 service, 1/4" male flare. Quick and easy to connect/disconnect with high flow rate. Reliable and safe for valve access systems even at working pressure. Connection side for A/C pressure gauge type (R-134A ) Specification: Connector: 90 Material: Brass Compatibility: R134 Low side quick coupler: Blue High side quick coupler: Red Application: Car Add fluorine manifold tube connections on both adapters: 1/4" Inner diameter (blue): approx. 14mm/0.55inch Inner Diameter(Red): Approx. 14mm/0.55inch French: 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) Note: Please allow minor error due to manual measurement. Thanks for your understanding. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.