Abstract: A shower curtain assembly for easy mounting or dismounting relative to a shower rod includes a first shower curtain portion having short vertical side edges with top and bottom edges extending therebetween and defining apertures for hanging the first portion from a shower rod with hooks. A second shower curtain portion includes long vertical side edges with top and bottom edges extending therebetween. Fastener strips having rib and groove elements depend from bottom and top edges of the first and second portions, respectively. Each fastener defines a guide track. The assembly includes a slider formed to straddle the fastener strips and having guide members that cooperate with the guide tracks. A separator finger is disposed in the slider and is shaped so as to urge the rib and groove elements apart or together depending on which longitudinal direction the slider is moved.