Speedi-Products EX-AF 7120 7-Inch Diameter by 10-Feet Aluminum Flex Pipe</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Speedi-Exhaust Products are made in the USA</li><li>Used in HVAC warm air supply， return and exhaust duct systems</li><li>Seal joints with approved duct mastic sealants</li><li>Insulate Ductwork for improved energy efficiency and comfort</li><li>Consult your local building codes for approved installation practices</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/41Rm0cKdtbL.jpg' noproxy></br>