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Pipe Size Dimension A - Grate Dimension Dimension B - Grate Thickness Dimension C - Clear Opening Dimension DD - Lower Frame Diameter Dimension E - Frame Dimension Dimension F - Frame Height Grate Type Open Area Perimeter Shape
N/A 28-1/4 x 56-1/2 1-1/2 54 x 54 64 x 64 4-1/2 A or C 9.3 18.8 Square/Rectangular
All dimensions are listed in inches unless otherwise noted.

For similar castings with lids, see R-6662-3 Series

Grate in two pieces

Frame in sections bolted at corners

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