Prime-Line 5.4 in. H X 1-9/16 in. W White Frameless Shower Door Bottom Guide

These bottom guides from Prime-Line are constructed from injected plastic, keeping them rust- and corrosion-free while maintain lasting durability. They fit a 7/16 inch thick door rail and help to keep your sliding tub enclosure doors well-aligned and operating smoothly. This particular model is used by several shower door manufacturers and installs easily with its snap-in design or using double-sided tape.