Product review (5 stars): Easy and Effective
Our house was built in 1988 and had never been done. Took about 30 minutes to clear a clogged 22' duct (with additional rods). We were having to run the dryer twice to get our clothes dry and know they are done almost as fast as the washing machine can wash a load. Will be doing this 3-4 times per year as recommended it is so easy and made such a huge difference.