Product review (5 stars): Works on more than dryer ducting
Used on the horizontal condenser under my refrigerator. While I could not get to the ends of each row, I could get in the places where the coils were spaced out. This coupled with the softness and flexibility of the brush allowed me to finally brush loose the 10+ years of dust that had collected on the condenser. Coupled with an extension wand on my vacuum, it is now pretty clean under there!