I just rebuilt and restored all the air-conditioning ducts on my car and have some left over duct material; it comes in 6 ft. lengths, only needed 2 ft. to do the job! The piece I have is 2-1/2" in diameter and about 30" long which is enough to replace the 2 pieces under the dash that connect the defrosters to the AC plenum. I'd like $23 shipped anywhere in the continental US.