DryerFlex® Transition Duct, 4′
Safety & Efficiency Of Semi-rigid Duct That Bends Like Slinky Foil
Ul 2158a Listed And Approved, which means this product is fire resistant.
Complies With IMC 504.4 & IRC 1502.3
Helps Protect Against Dangerous Kinks while still providing maximum flexibility.
Maintains A 4″ Inside Diameter, Stretched Or Compressed
4.75″ Compressed; Extends To 4′ (48″)
5 Layers Of 25 Micron 100% Aluminum Ribbon Around Galvanized Zinc-coated Wire
Check out this video to see a flame test comparing the standard dryer vent “slinky” hose you buy in the store (and is highly flammable) with an aluminum, rigid vent (difficult to work with, but less flammable) and this DryerFlex® transition duct (which has the ease-of-use of a slinky-type duct, but is even more flame-resistant than rigid aluminum).