TILE & STONE ZENITH Style Number CS38P CS37P CS36P CS39P CS40P Construction porcelain porcelain porcelain porcelain porcelain Tile Type floor tile floor tile floor tile bullnose mosaic Tile Size 12" × 24" 18" × 18" 13" × 13" 2.75" × 13" 13" × 13" Technical Wear Rating Group 4 4 4 4 4 Break Strength 337 337 292 292 292 Water Absorption % 0.3 0.3 0.3 0.3 0.3 DCOF 0.56 0.56 0.56 0.56 0.