POWERTEC 70149 Dust Control Flex Cuff with Hose Clamps， 4-Inch<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Designed to airtight connection of two fittings or hoses without using duct tapes</li><li>Rubber construction provide flexibility to bridge slight diameter differences</li><li>A pair of hose clamps included</li><li>Both ends measures 4-9/16-Inch O.D. and 4-5/64-Inch I.D.</li><li>Connect to 4-Inch O.D. adapters or hoses</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41dtcihLl5L.jpg" noproxy>