These drains are designed for use with tile or marble showers where a shower pan liner is used. The three-part drain includes a base, reversible clamp collar, and threaded barrel, featuring a low-profile design for tight installations. Configurations come in square or round, snap-in or screw-in. Each barrel includes a tile ring to protect the strainer from grout. You can install with confidence knowing these products have earned the trust of plumbing professionals for over 100 years.