Tile Redi 4837C-PVC Base Shower Pan, Single Curb 37" W x 48" D, BlackALL IN ONE SHOWER SOLUTION: One piece, leak proof, pre pitched shower pan with integrated curb and splash walls READY TO TILE: Install tile directly on shower pan surface to customize base to the look and feel of your bathroom EASY TO INSTALL: Install in mortar base; see instructions for further details DRAIN & PLATE INCLUDED: Features 2 inch center PVC drain and round polished chrome drain plate DIMENSIONS: 37" WIDTH x 48" DEPTH x 4. 25" Threshold