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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 13-3/4 x 13-3/4 1-1/2 12 x 12 18 x 18 4 A or C 0.5 4.6 Square/Rectangular
All dimensions are listed in inches unless otherwise noted.

Heavy Duty
For similar castings with lids, see R- 6662-3 Series.
Also available with Type Q grate.

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