Lambro 4″ x 8′ UL 2158A Semi-Rigid Transition Duct Louvered Vent Kit – Item #313WUL (Replacement # 1379W-R) Size:4″ x 8′ OD x 1-3/8 in

OD x 1-3/8 in

packages and boxes

Specially formulated to resist mildew growth

replacement spool

Variable Speed Trigger

Lambro 4″ x 8′ UL 2158A Semi-Rigid Transition Duct Louvered Vent Kit – Item #313WUL (Replacement # 1379W-R) Size:4″ x 8′ OD x 1-3/8 inUL 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