Oatey’s Testable 130 Series Drain PVC Square Low Profile are designed to be used in tile or marble showers where a shower pan liner is present in residential or commercial applications. The product includes: A tool-free test plug, square and round barrels with strainer accessories, reversible clamp collar and a tile ring that can be designed to the installer's liking. The tile ring is built to protect grout during and after installation. Available in both round and square configurations, the tile ring also comes polished stainless steel, brushed nickel and oil-rubbed bronze finishes.