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Pipe Size Dimension A - Lid Dimension Dimension B - Lid Thickness Dimension C - Clear Opening Dimension E - Frame Dimension Dimension F - Frame Height Shape Frame Type
23-3/4 x 23-3/4 15/16 21-7/8 x 21-7/8 30 x 30 3 Square/Rectangular
All dimensions are listed in inches unless otherwise noted.
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