Features: - Colour: as shown in the picture. - Material: metal. - Suitable for R134 AC gauge hose. -High pressure quick coupler (red) and low pressure quick coupler (blue) are easy to use. - Adjustable valve for easy attachment and removal to prevent leakage. -Compatible with 1/4 and 1/2 inch AC female fittings. - Perfect replacement of the valves supplied with your car's air conditioner. Package includes: A pair of R134A quick connectors. 1 x R134A Can Tap. 1 x Tank Adapter