6 Round Cast Iron Grate Black NDS

NDS Duracast In-Line 6-Inch Round Grate open surface area 9.0 square inches. 11.79 GPM. H-20 load rating. Fits 6-inch corrugated and sewer and drain pipe. Our heavy duty cast iron Duracast grates meet H-20 load rating standards for loads of 326 – 575 psi. Choose from our selection of cast iron or ductile iron of 6″ to 12″ wide.