Today"s kitchen is the hotspot of the home - it"s where the best conversations start, special occasions are toasted with friends and the echoes of last night"s laughter can still be heard. Celebrate your days and nights with Crosstown - urban design with universal appeal. Select from undermount and universal mount models for all installation types. ECTR Models have the universal mount feature, which allows the same sink to be installed as an undermount or top mount. Made from 18 gauge, type 304 nickel-bearing stainless steel for life-long durability. Fully protected by heavy duty Sound Guard undercoating that dampens sound and reduces condensation. Equipped with 31/2" drain opening(s). ECTRU Models have 15mm (5/8") corners, which makes them easy to clean. Templates included with sink. The template provided with each ECTRU sink provides the only type of installation recommended by Elkay. Do not cut any openings until you have the actual sink on hand.