18 x 18 Inch SuperFlow Main Drain Grate Only 816 GPM (Package of 2) filter-length_18 9/16 inches The display shows separate lines

The display shows separate lines for units

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18 x 18 Inch SuperFlow Main Drain Grate Only 816 GPM (Package of 2) filter-length_18 9/16 inches The display shows separate linesThis is an 18 x 18 inch 816 GPM replacement Main Drain Grate Only. This comes as a pack of two. The domed SuperFlow main drain grating is unique since it has the capability to maintain a flow rate of 816 GPM (18 x 18 inches). Includes grate (cover only) and screws. This anti entrapment cover is VGB compliant and certified to the APSP ANSI ICC 16 2017 standards.