Elkay, LKOBG1417LSS, Bottom Grid, SS, 15-1/16"Lx12-5/16"W Why an Elkay custom designed bottom grid? Features: Protect the bottom of your sinkCustom designed to completely cover the entire bottom of the sink bowlProperly positioned opening for convenient access to drain or disposerBuilt from solid stainless steel to resist corrosion and provide years of service Fits Bowl Size 15-3/16" x 17-7/8"