High & Low Quick Couplers Adapters for A/C manifold gauge setBlue: Low side quick connector/adapter,Red: High side quick connector/adapterquick and easy connect/disconnectProtection sleeve to provide safety protection to avoid injury and refrigerant loss, defending against leakageModel: R1234yfColor: red, blueMaterial: metalSize: height 68 mm / 2.6 inch, diameter 30 mm / 1 inchPackage Contents: 1 * High pressure quick coupler (red)1 * Low pressure quick coupler (blue)Only the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.