Dundas Jafine BTD48TC ProFlex Clothes Dryer Transition Duct UL 2158A Listed &amp; Marked With 2 Tension Clamps， 4-Inch by 8-Foot<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Ideal for gas and electric dryer applications</li><li>Constructed of heavy duty， fire resistant， 4 ply aluminum foil laminate that encapsulates a high density， corrosion resistant wire helix</li><li>Forms an air tight and easy to use air duct</li><li>Duct will not support combustion</li><li>UL2158A labeled and marked. Includes 2- 4" tension clamps</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41SAlwH3Y3L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41SAlwH3Y3L.jpg" noproxy>