Both an expression of your style, and a testament to Blanco's unsurpassed quality and craftsmanship - a variety of shapes, sizes, and features combine to bring you the diamond collection. Made from the rock hard, silgranit patented surface, the diamond kitchen sink features a smooth surface that is resistant to chips, scratches, and heats up to 536°F. Even a fork or the bottom of a hot pan can't damage Blanco silgranit sinks. The colorful, non-porous surface also makes the bowl resistant from all stains, household acids, and alkali solutions as well as easy-to-clean. Granite/quartz composite construction Undermount/drop in installation Heat resistant up to 536 degree F Patented granite composite material made of up to 80% quartz sand Heat, scratch and impact-resistant Non-porous, repellent, stain-resistant - does not absorb liquids or acids Easy to clean does not require harsh chemicals Hygienic+Plus surface protects against bacteria Unsurpassed cleanability backed by industry leading 7 patents Resistant to scratches, stains and all household acids and alkali solutions Rear-positioned and centered drain hole maximize cabinet storage Required Outside Cabinet: 36'' Cut-out Size: Please refer to the supplied cutout template Includes softly rounded drain grooves Cutout Corner Radius: 5/8" Accepts 3 1/2" U.S. drain fittings If undermount installation, the required cabinet space should be 35 1/2" 10 undermount clips are required for undermount installation. Choose from options Mounting hardware is included CSA B45.8-18/IAPMO Z403-2018 Key Features & Innovations Hygienic+Plus surface Hygienic+Plus surface protection formula reduces bacteria growth by an average of 98%. This low-maintenance, long-lasting material will help make life in the kitchen easier.