The Zurn FS12 Sanitary PVC floor sink with 14" [305 mm] square top x 6-3/8 [162 mm] deep sump,with smooth internal surface, and Sani-Loc dome strainer, designed in accordance to ASME A112.6.7 & CSA B45.5/IAPMO Z124 standards. All full grates are rated medium-duty unless otherwise noted.