copperfield-poly-chimney-cleaning-rod-1     round poly brush

 

The above photos are of extremely flexible PVC rods and of a poly brush. This equipment is ideal for cleaning light-weight stainless steel all-flex liners. These rods and brushes navigate bends in flexible liners very easily. The rods and brushes in the photos below are very stiff, and can get caught up in a flex liner, and possibly rip the liner. They should not be used:

Fiberglass rods    Metal brushes