This Duco coated cast iron medium duty floor drain has an adjustable 8-1/2" diam. top for easy leveling with adjacent surfaces. Its integral 17" diam. flange is creates a seamless watertight bond with waterproof floor coverings. It is available with and without a sediment bucket. The sediment bucket version employs a Safe-Set design that ensures proper realignment of its sediment bucket after emptying. The Safe-Set design of this general purpose floor drain helps protect drainage systems from wastewater debris.