Dundas Jafine's semi-rigid dryer to duct connector kit offers a safe and efficient way to connect your dryer transition duct to the back of your dryer. The kit includes a 4 x 8 ft semi-rigid aluminum duct, a plastic connector piece as well as an optional plastic extension piece for those dryers with recessed exhaust ports. The connector and extension piece is made of polypropylene containing fire retardant additive which meets UL94 VO standards for flame resistance. Once attached, it helps the duct from being crushed and improves the air flow from the back of the dryer. The connector piece is also friction fit to the dryer for an easy connection that does not require clamps or duct tape for attachment and can be easily removed for cleaning.