1/2 in W x 20 3/8 in L x 12 in H, Wall, 18 ga. 304 Stainless Steel, Elkay, Mfr#: EFSSP21

Side Panel, for EFSBP33, Back Panel for EFS3321C, Material Stainless Steel, Mounting Type Wall, Color Stainless Steel, Overall Length 20 3/8 in, Overall Width 1/2 in, Overall Height 12 in, Back Splash No, Side Splash Yes, Gauge 18, Includes Wall Panel, Manufacturers Warranty Length 5 yr, Standards ASME A112.19.3/CSA B45.4, Buy American Act