Abstract: A dual curtain rod unit for installation between opposite walls of a shower stall, the unit having an outer rod, a substantially bow-shaped inner rod of uninterrupted, substantially smooth outer surface construction over its entire functional length, a keying shaft on each end portion of the inner rod, a pair of end plates adapted for attachment to opposite walls of a shower stall, a first socket in a forward portion of each of the end plates for receiving and supporting the ends of the outer rod, and a keying socket in a rearward portion of each of the end plates for receiving and supporting the keying shafts of the inner rod in a mating, sliding fit, non-rotative manner with the bow of the inner rod facing toward the outer rod, the keying sockets being the only points of attachment of the inner rod, thus allowing for the uninterrupted surface thereof along its entire functional length for permitting slide hangers mounted thereon to slide without significant resistance.