8" round floor drain is constructed and designed to meet USDA, WDA and 3A sanitary standards. Bodies are constructed of 12-gauge 316SS for extended life in many different corrosiveenvironments. The heavy-duty 1/2" 304 stainless steel top plate has finger holes for easy removal. Comes with catch screen to ensure separation of solids and liquids. 4" OD connection adapts 4" PVC pipe. Grout retaining ring prevents pop-out.