Product review (5 stars): Excellent product!
Work GREAT and the tubes are very flexible.
I have 24 feet of tube to clear and got it cleaned from both ends.
I cleaned the furthest end of 12 feet with the dryer running on the "cool" setting and then cleaned the end closest to the dryer by disconnecting the tube near the dryer, then cleaned and finally I used a leaf blower to blow the entire line clean.
This is a great product and I would definitely recommend.