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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
22-1/2 x 22-1/2 1-1/2 18 x 18 25 x 25 5-1/2 Square/Rectangular
All dimensions are listed in inches unless otherwise noted.

Heavy Duty

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