{HEAD ~ Each channel section} has {TAIL ~ a connection mechanism} along at least one side such that the two channel sections are joinable to form a substantially tubular conduit which has a smooth interior surface, reducing friction losses to the airflow speed of the dryer exhaust 
has
{ HEAD ~ Each channel section } has { TAIL ~ a connection mechanism } along at least one side such that the two channel sections are joinable to form a substantially tubular conduit which has a smooth interior surface , reducing friction losses to the airflow speed of the dryer exhaust
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH