We discuss two infinite classes of 4d supersymmetric theories, T () and $$ {\mathcal{U}}_N^{(m)} $$ , labelled by an arbitrary non-negative integer, m. The T () theory arises from the 6d, A N − 1 type $$ \mathcal{N}=\left(2,0\right) $$ theory reduced on a 3-punctured sphere, with normal bundle given by line bundles of degree (m + 1, −m); the m = 0 case is the $$ \mathcal{N}=2 $$ supersymmetric T N theory. The novelty is the negative-degree line bundle. The $$ {\mathcal{U}}_N^{(m)} $$ theories likewise arise from the 6d $$ \mathcal{N}=\left(2,0\right) $$ theory on a 4-punctured sphere, and can be regarded as gluing together two (partially Higgsed) T () theories. The T () and $$ {\mathcal{U}}_N^{(m)} $$ theories can be represented, in various duality frames, as quiver gauge theories, built from T N components via gauging and nilpotent Higgsing. We analyze the RG flow of the $$ {\mathcal{U}}_N^{(m)} $$ theories, and find that, for all integer m > 0, they end up at the same IR SCFT as SU(N) SQCD with 2N flavors and quartic superpotential. The $$ {\mathcal{U}}_N^{(m)} $$ theories can thus be regarded as an infinite set of UV completions, dual to SQCD with N f = 2N c . The $$ {\mathcal{U}}_N^{(m)} $$ duals have different duality frame quiver representations, with 2m + 1 gauge nodes.