  Gauge theories in four dimensions can exhibit interesting low energy
phenomena, such as infrared enhancements of global symmetry. We explore a class
of 4d N=1 gauge theories arising from a construction that is motivated by
duality walls in 5d gauge theories. Their quiver descriptions bear a
resemblance to 4d theories obtained by compactifying 6d N=(1,0) superconformal
field theories on a torus with fluxes, but with lower number of flavours and
different number of gauge singlets and superpotentials. One of the main
features of these theories is that they exhibit a flavour symmetry enhancement,
and with supersymmetry enhancement for certain models, in the infrared.
Properties of the superconformal fixed points of such theories are investigated
in detail.
