High and Low R134A Quick Coupler Adapters and high quality Car Air Conditioner AdapterCouplers The R134A air conditioning (A/C) fast connector allows you to connect multiple hoses in the automotive industry/automotive R134a air conditioning system during diagnosis, charging or evacuation Including high/low connectors, the design can effectively prevent damage and loss of coolant Valve access system is reliable and safe even under working pressure Feature: Side fitting for A/C manifold gauge set (R-134A) type. Note: Installation guide not included, we strongly recommend you professional installation. Please check as much as possible to make sure the item is what you need. Tips: The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use Colour:Photo Color Material:Metal Package Contents: 2x Quick Coupler Adapter Only the above package content, other products are not included. Note: Light reflection 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.