A transmission phenomenon for a quantal particle scattered through a multiwell potential in one dimension is observed by means of an amplitude-phase method. The potential model consists of n identical potential cells, each containing a symmetric well. Typical transmission bands contain n − 1 possible energies of total transmission. It is found that certain band types contain n energies of total transmission. A fusion phenomenon of this type of band with a typical neigboring band is also found. As the transmission gap between them collapse and disappear, a resulting fused single band is seen to contain 2n − 1 energy peaks of total transmission.