Archer 36 in. x 36 in. Single Threshold Shower Base with Center Drain and Removable Drain Cover in WhiteThe KOHLER Archer 36 in. x 36 in. Single Threshold Shower Receptor in White has beveled edges and a curved base in a timeless, 1 piece design crafted from tough fiberglass and plastic. It reflects and complements the transitional aesthetic of KOHLER's Archer suite of bath components and has a unique covered drain design. Includes the shower receptor only Unique, covered drain design Compatible with other bath components in the archer collection