Redi Trench® shower bases are the industry's only one-piece, tileable shower pans with an integrated trench drain and designer trench drain cover. Choose from single curb, double curb, or barrier free entrance. All models offer the top-quality features you expect from Tile Ready® brand shower pans. Tile Redi® shower bases comply with all national and local plumbing codes and are UL-listed. Tile Redi RT3648L-PVC Features: Tile Redi RT3648L-PVC Specifications: