Product review (5 stars): A Great  Product
This is a great product and works exactly as advertised. I had 15 feet of PVC dryer duct under the concrete slab with two 90s in it and had no other way of cleaning it out. This product was actually kind of fun to use, it was so easy. I got a bucket full of lint from the vent and the inside is now so clean it's shiny. You can buy this product with confidence and I couldn't recommend it more.