Product review (5 stars): Gardus Dryer Vent Cleaning System
The Gardus provides you everything you need to clean most home dryer vents.
Our home had a 30' long duct and the product removed a large trash bag
of lint.  Since we cleaned our Dryer ducts we don't worry so much that
we might have a drastic vent fire - this product is definitely worth the
price we paid.