Quick cool gas adjustable joint Includes high and low side coupler Adjustable valve core puller fits different valve cores Ideal for replacing valve cores without unloading or recovering the system Internal ball valve retains charge and allows access to automatic A/C systems Usage: Wear gloves and goggles before proceeding. Follow steps below to replace the valve core: 1. Unscrew the low-side (or high-side if applicable) port cover 2. Connect the valve removal tool 3. Insert the extractor 4. Loosen the old valve core 5. Pull the valve core up 6. Remove the valve core 7. The valve core is now removed 8. Place the new valve core on the stem 9. Install the new valve core 10. Replace the protective cover on the low side port Red indicates high side, blue indicates low side Adjustable valve core extractor fits various valve core types Suitable for valve core replacement without system evacuation Note: Product may vary slightly between batches. Minor differences in color or design may occur and do not affect functionality. Color: As shown in photos Material: Metal Package Contents: 1 x Valve Core Remover Tool Set Package includes only the items listed above Note: Lighting and display settings may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3 cm.