Refrigerant Valve Core Tool Quick Remover Installer for R134A AC High Low Pressure Quick cool gas adjustable joint<br> Inclosed the high and low side coupler<br> The valve core puller is adjustable to fit the different valve core<br> Excellent for replacing valve cores without unloading or recovering the system<br> Internal ball valve retains load & allows access to automatic a / c systems<br> Use:<br> At this point you must put on the gloves and goggles, and then you can replace the valve core as described below.<br> 1. unscrew the low-side (or high-side if that's what you're fixing) port cover<br> 2. connect the valve removal tool<br> 3. insert the extractor<br> 4. loosen the old valve core<br> 5. pull the valve core up<br> 6. remove the valve core<br> 7. the valve core is now out<br> 8. Place the new valve core on the stem<br> 9. install the new valve core<br> 10. put the protective cover back on the low side door<br> Red for the high side and blue for the low side<br> The core of the extractor valve is adjustable to adapt to different of the valve core<br> Excellent for replacing the valve core without unloading or recovering the system<br> 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<br> Colour:Photo Color<br> Material:Metal<br> Package Contents:<br> 1 x Valve Core Remover Tool set<br> Only the above package content, other products are not included.<br> 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.