Elkay GBG1318SS Bottom Grid CUSTOM SIZED: Designed to cover the bottom of specific Elkay sink bowls. CORROSION RESISTANT: Constructed of solid stainless steel to resist corrosion. PROTECTS SINK BOTTOM: Specially designed feet protect sink bottom to keep it looking great. CONVENIENT DRAIN OPENING: Properly positioned opening provides easy access to drain or disposer. DISHWASHER SAFE: Fits inside the dishwasher for convenient cleaning.