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|Pipe Size||Grate Diameter||Grate Thickness||Grate Type||Load Designation||Round Feet Open||Weir Perimeter Lineal Feet|
|All dimensions are listed in inches unless otherwise noted.|
Fits in bell end of standard sewer pipe. Bell and spigot vitrified clay and concrete pipe are made under many specifications
and dimensions vary. Check the grate sizes in the table to be sure they will fit the pipe you are using.
If specified, special setback lug arrangement is available on R-4040 series, which modifies grate to fit
corrugated metal pipe in sizes indicated. Not available on R-4030 series.