This labor saving cleanout uses our Twis-to-Floor® adjustment technology to level the top with adjacent surfaces after terrazzo and similar poured floors are installed. Its 5-3/4” (145) diam. nickel bronze top is recessed 1/2” (13) and locks in the poured flooring material for an unobtrusive appearance. Constructed of Duco coated cast iron, this cleanout is designed to support foot and medium load wheeled traffic.