Product review (5 stars): What a difference
This product did a super job.  Did have to get the extension kit also, as dryer vent line is 30 ft long.  Knew there had to be an issue, was taking nearly three hours to dry a load of clothes.  Line was nearly blocked about half way thru, was amazed at what came out of the vent line.  Drying working like new, taking about 45 minutes.  Easy to use.  Shipped very quickly and was considerably less in price than local Home stores.