Shark 12413    Tank Adapter， CGA 520 to 510-B</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Adapts CGA520 to CGA510 - B tanks</li><li>Optional extensions to expand capabilities</li><li>For connections of oxygen and acetylene cylinders</li><li>Built to last</li></ul></div></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/41AixelXpIL.jpg' noproxy></br>