Lambro 4″ x 8′ UL 2158A Semi-Rigid Transition Duct Louvered Vent Kit – Item #313WUL (Replacement # 1379W-R)

UL 2158A duct is highly recommended for clothes dryer venting installations. Opening/closing flaps prevents outside elements from entering the vent Flexible semi-rigid aluminum triple-lock design for more durability Ideal for both gas and electric dryer installations UL 2158A listed and labeled as a clothes dryer transition duct UV inhibitor is used to help prevent the premature fading of vent Product Contains: (1) – 4″ White Plastic Louvered Vent with 11″ Tail Pipe (1) – 4″ White Plastic Trim Plate (1) – 4″ x 8′ UL 2158A Semi-Rigid Aluminum Transition Duct (2) – 4″ Metal Worm Gear Clamps