| Model | Function | Length in | Width in | Material | Slot Opening (in) | Tree Opening (in) | |
|---|---|---|---|---|---|---|---|
 | DWP R-4984-24Q Iron Raw | Detectable Warning Plate | 23-15/16 | 23-15/16 | Cast Iron | ||
 | DWP R-4984-24Q Iron Yellow | Detectable Warning Plate | 23-15/16 | 23-15/16 | Cast Iron | ||
 | DWP R-4984-30Q Iron Yellow | Detectable Warning Plate | 29-15/16 | 23-15/16 | Cast Iron | ||
 | DWP R-4984-36Q Iron Raw | Detectable Warning Plate | 35-15/16 | 23-15/16 | Cast Iron | ||
 | DWP R-4984-36Q Iron Yellow | Detectable Warning Plate | 35-15/16 | 23-15/16 | Cast Iron | ||
 | R-8706-1A | Tree Grate | 48 | 48 | Cast Iron | 0.25 | 18 |
 | R-8708 | Tree Grate | 48 | 48 | Cast Iron | 0.25 | 16 |
 | R-8781 | Tree Grate | 48 | 48 | Cast Iron | 0.375 | 18 |
 | R-4989 Type P | Trench Grate | 24 | 6 | Cast Iron | ||
 | R-4990-AX Type P | Trench Grate | 24 | 8 | Cast Iron | ||
 | R-4990-BX Type P | Trench Grate | 24 | 10 | Cast Iron | ||
 | R-4990-CX Type P | Trench Grate | 24 | 12 | Cast Iron | ||
 | R-4990-DX Type P | Trench Grate | 24 | 14 | Cast Iron | ||
 | Trench R-4990 Frame | Frame | 24 | Cast Iron |
