A riser is needed when you want to put your catch basin deeper in the ground to attach to drainage pipes. Riser sits on top of your NDS® catch basin and accepts your grate just like the top of the catch basin.
| Grate Size | 9 inch x 9 inch, 12 inch x 12 inch, 18 inch x 18 inch, 24 inch x 24 inch |
|---|---|
| Manufacturer | NDS |
| Channel Material | Plastic |
| Product Type | Part |
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